The 1990 Donruss baseball card set is considered one of the most valuable sets from the junk wax era of the late 1980s and early 1990s. While cards from sets in this time period are generally not worth much individually, there are a few key reasons why the 1990 Donruss set stands out and holds potentially higher value for collectors.

First, the 1990 Donruss set was the last major issue of cards before the baseball card market crashed in the early 1990s due to overproduction. Donruss and Fleer flooded the market with cards in the late 80s, driving down prices and sparking the junk wax era. By 1990, collectors were starting to lose interest with so many similar looking and low quality cards on the market. As one of the last major sets before the crash, the 1990 Donruss cards have more nostalgia and significance attached to them compared to later early 90s sets.

Second, the 1990 Donruss set marks some key rookie cards that are highly sought after by collectors today. Specifically, the rookie cards of Hall of Famers Chipper Jones, Jim Thome, and Bobby Higginson are considered valuable pulls from the 1990 Donruss set. Chipper Jones’ rookie card in particular regularly sells for over $100 in near mint condition and has potential to sell for thousands in a PSA 10 graded gem mint gem. Collectors are always on the hunt for these important rookie cards from the 1990 Donruss set.

Third, the photography and design of the 1990 Donruss set stands out compared to other late 80s/early 90s issues. While still adhering to the simple and somewhat generic design elements of the junk wax era, the 1990 Donruss cards utilized high quality action photography that made the players really pop on the card. The photography and overall visual presentation is sharper and more striking than in other similar era sets like 1989 Donruss, 1989 or 1990 Fleer, etc. This higher production quality gives the 1990 Donruss cards nostalgic appeal that extends beyond the junk wax stigma.

Fourth, key veteran star cards from the 1990 Donruss set retain value much better than other late 80s/early 90s star issues. For example, the Nolan Ryan card from the 1990 Donruss set in PSA 10 condition can sell for over $300. Other star cards like Rickey Henderson, Cal Ripken Jr., Wade Boggs, and Ozzie Smith also command prices well above typical junk wax era levels. The presence of these all-time great players drives interest in the 1990 Donruss set from both collectors and investors.

Fifth, overall the 1990 Donruss set has a solid checklist of future Hall of Famers and all-time greats that gives the cards long term intrinsic value. In addition to the names already mentioned, the set features rookie cards and vet cards of players like Tom Glavine, Ken Griffey Jr., Frank Thomas, Jeff Bagwell, and Tony Gwynn. This depth and quality of talent featured differentiates the 1990 Donruss checklist from many other junk wax era releases and ensures the set maintains relevance.

Sixth, while production numbers were high for 1990 Donruss like most sets from that time, the overall survival rate of cards from the set into the modern day is relatively low when accounting for the thousands of boxes that were opened and cards played with in the early 90s. This means finding higher grade examples like PSA 8s, 9s, or 10s of chase cards takes more work and makes condition sensitive specimens more valuable than typical low grade junk wax survivors.

Seventh, the 1990 Donruss set is generally considered the best designed and produced mainstream set of the junk wax era. This has led to it being both a nostalgic favorite for collectors who grew up in that era, as well as an entry level, affordable set for modern collectors just getting into the vintage and retro market. Strong ongoing collector interest and demand fuels values long term compared to many lesser known and remembered junk wax sets.

While individual 1990 Donruss cards are generally not prized at ultra high values like rookie cards from the late 80s Bowman or Topps sets, the overall 1990 Donruss set has maintained relevance and demand due to its important rookie cards, all-time great veteran checklists, high production quality photography, being the last major pre-crash release, and nostalgic design quality. Modern day complete or high grade 1990 Donruss sets can sell for thousands, and key singles like Chipper Jones, Nolan Ryan, Ken Griffey Jr. rookie cards hold the potential for even higher values when graded and preserved mint. The 1990 Donruss set avoids being purely dismissed as junk wax due to these factors, and will likely remain a valued and regularly traded vintage release for collectors and investors going forward.