Baseball cards were hugely popular with collectors throughout the 1990s. After experiencing a boom period in the late 1980s fueled by the rise of the junk wax era, baseball cards remained a mainstream hobby for sports fans and collectors alike well into the next decade.

The junk wax era, characterized by overproduction of cards which led to plummeting values, began to wind down in the early 90s. Companies like Fleer, Donruss, Score, and Upper Deck still produced cards in enormous numbers. Sets featured rookie cards of future stars like Chipper Jones, Pedro Martinez, Nomar Garciaparra, and Derek Jeter that remain coveted by collectors to this day.

While the glut of cards available kept individual values low, it did allow many collectors to assemble complete sets relatively inexpensively. Kids could still get a thrill from opening packs of cards at the convenience store or drug store, even if the resale value of any given card was not very high. Affordability helped maintain baseball cards’ popularity through this period.

Two major developments helped transition the hobby away from the excesses of junk wax era by the mid-1990s. In 1991, Topps regained the MLB license from Score and Donruss, restoring it as the sole producer of official baseball cards once more. This helped curtail overproduction as Topps had more incentive to limit print runs with no competition.

Around the same time, the rise of the internet allowed for the emergence of online trading and database sites like Trading Card Database and Sportscard Forum. This facilitated easier connection between collectors, identification of rare cards, and assignment of relative values – even as the printed Beckett guides remained the industry standard.

The increased rarity and scarcity of some 90s cards, coupled with the growing collector base, set the stage for prices to begin appreciating from their all-time lows. Rookie cards of standouts like Jeter, Ken Griffey Jr., and Piazza started gaining value as their careers progressed and hype grew.

In the mid-90s, companies like Upper Deck, Score, and Fleer still produced multi-thousand card sets. But Topps led the way in paring down set sizes to make inserted parallels and serially numbered “short prints” more impactful for collectors. Exclusive licensed products from companies like Collector’s Choice, Pinnacle and Leaf also gained popularity.

The late 90s saw a continued shift towards premium, higher-end cards. In 1996, Topps Finest debuted as a premier product with glossy on-card autographs. In 1997, Topps Chrome introduced the popular “refractor” parallel concept with shiny, colorful foilboard cards that captured the imagination of collectors.

Luxury brands like Topps Tiffany, Ultra Pro, and Fleer Authentix offered extremely rare autograph cards encased in plastic that fetched high prices. These premium products helped elevate the hobby and pull it further away from the flea market-like feel of the early 90s junk wax era.

The 1990s also saw the rise of numerous non-sport releases from companies seeking to capitalize on the trading card boom. While not true “baseball” cards, sets featuring movies, TV shows, and musicians captured collector interest and expanded the reach of the card collecting phenomenon during this period.

While overproduction issues persisted into the early 90s, baseball cards remained hugely popular with both kids and adult collectors throughout the decade. The emergence of the internet and shift towards more limited runs of premium hobby boxes in the latter half of the 90s set the stage for a rebound and re-appreciation of the best rookie cards from this era in the decades since. Cards from dominant players like Griffey, Piazza, and Jeter retain strong demand more than 25 years later.