The value of baseball cards can vary greatly depending on numerous factors like the player, year, condition, and more. As a general guideline, here is what a collection of around 2000 random baseball cards might be worth based on different categories of cards:

Rookie cards of star players in pristine condition could each be worth hundreds or even thousands of dollars. For example, a near-mint Mickey Mantle rookie card from 1952 Topps in a PSA/BGS 10 gem mint grade could fetch over $250,000. Most collectors do not have cards in that condition from such an early and desirable set. More realistically, star rookie cards from the 1980s-1990s in excellent condition could range from $50-500 depending on the player. Examples include Ken Griffey Jr. rookie, Barry Bonds rookie, Cal Ripken Jr. rookie, etc. Having a few desirable rookie cards in great shape could significantly boost the value of a 2000 card collection.

Hall of Fame player cards from the 1970s-1980s are also quite collectible, especially if the player had their best years during that time. Near-mint/mint condition cards of Hank Aaron, Willie Mays, Tom Seaver, Nolan Ryan and others from the mid-late 1970s could each be worth $10-50. 1980s update/rookie cards of established stars like Mike Schmidt, George Brett or Ozzie Smith could fetch $5-25 cents. A collector with a handful of desirable vintage HOF cards might add a couple hundred dollars to their collection’s worth.

Star cards of modern players (1990s-2010s) also carry value, though lower than older stars generally. Crisp near-mint cards of players like Ken Griffey Jr., Barry Bonds, Chipper Jones, Derek Jeter and Mariano Rivera from the 1990s might each sell for $1-10 depending on the specific player, year and set. Later star cards from the 2000s-2010s would likely be worth under $5 a piece, with the most desirable ultra-short printed parallels worth marginally more. In total, modern star cards could potentially account for $100-300 of value in a large collection.

Base cards (non-rookie, HOF, star players) make up the bulk of most people’s collections. These common cards from the 1970s-1980s in played/good condition generally have little present value, often just a few cents each if that. Complete sets or high numbers of base cards could still hold value for thematic collectors. One in excellent condition could maybe fetch 50 cents. From the 1990s-present, common base cards also have very little secondary market value at just pennies each. But a large assorted grouping of these could still total to $50-100 of the collection’s overall worth.

Premium sets and parallels are where above-average collectors could really find value. Ultra-premium late 80s/early 90s sets like 1988 Topps Traded, 1989 Upper Deck, 1990 Leaf, and 1991 Ultra hold considerable nostalgia and could have many cards worth $1-10 each in great shape. Parallels and serial numbered/autograph cards from modern premium products like Stadium Club, Finest, etc. could also provide standouts despite individually having relatively lesser value. Short prints, 1/1s, or low-numbered patches/autos might sell for $10-100 each. A collector with a significant number of desirable set and insert cards might bump up a 2000 card collection value by several hundred dollars or more.

Condition is of paramount importance to achieving higher values. Near mint (NM) to mint (MT) graded cards often fetch a substantial premium. Most casual collectors do not have PSA/BGS graded cards and simply store cards loose in boxes. In such cases, condition is estimated by eye (played/good/very good/near mint). On average, a collection with a majority (60%+) of cards in good/near mint shape could realize higher values than one comprised of many played/damaged cards which would significantly diminish worth. Cards must also be authentic – fakes have negligible value.

Other factors can also impact pricing but make up smaller percentages. Player autographs on cards don’t move the value needle as much as the signed memorabilia market, with most autos adding only nominal $2-10 value depending on the star power. Numbered parallel rarities are desirable but for most players still have relatively low dollar impacts. Complete or high-percentage sets have some collector value over grouping lots, as do rookie/debut years for stars. Thematic collections focused on specific players, teams or other niches might be especially appealing to collectors. Organization in binders/boxes aids visualization and sale potential.

Taking all of the above into consideration for a typical 2000 randomly-assorted baseball card collection with the following breakdown:

10 desirable star/HOF rookie or early career cards averaging $25 value each = $250
25 assorted star/HOF cards from 1970s-1990s averaging $5 each = $125
50 modern star cards averaging $3 each = $150
100 premium set/insert cards averaging $2 each = $200
Remaining 1815 base/common cards averaging $0.25 each = $454

This would establish a reasonable estimate at around $1179 total secondary market value for the 2000 card lot. Of course, individual mileage may vary significantly based on the specific cards in one’s collection. But on average, a 2000 count grouping of random baseball cards in good condition could conservatively be worth over $1000 by today’s secondary market prices, assuming no true ultra-valuable gems are present. With diligent organization, higher condition grades, and a few true premium hits, some collectors could surely surpass $1500-2000 total for their 2000 card collection with the right mix of desirable content.

While individual common cards usually carry little value, a well-rounded grouping of 2000 baseball cards maintained in good state could provide hundreds of dollars of enjoyment for collectors either through appreciation, nostalgia or sales value down the road. The most collectible categories tend to be star rookie cards, desirable vintage Hall-of-Famers, premium sets and inserts – along with maintaining condition. But even a broad assortment of average cards can hold significance. With care, a 2000 card collection represents tangible memories and a connection to baseball history with potential financial upside over the long haul for savvy collectors.