Hi wewmerson90... and Welcome to the forum!
I had a Maple Custom Absolute back in the late 90's. An awesome kit! Dug through my Yamaha literature and found what I believe is the first flyer for the Absolute line...dated 1997. That sounds correct.
Shells were a bit thinner than the Maple Custom series, with 6-ply toms and snare drums and 7-ply bass drums. Only 5 lacquer finishes were available: Sea Blue Maple, Plum Maple, Pink Sparkle (which was more of a Champagne color), Silver Sparkle (which was my kit!) and Vintage, which is what you have. The Vintage finish started out as a golden maple color, then ages to a beautiful brown over time, which is what has occurred with your kit.
I believe the Absolute drums were only available for 5 years or less, so the market is not flooded with them. They are excellent drums and still command a nice price. Condition is everything. I would say that $1000 for your kit might be on the low end. Hope this helps!
-Mark