Kaare,
I would second what Limb said. In Feb. I finally got up to speed with the rest of the world (bought a newer parallel limb style bow and converted from fingers to release). I looked at and shot a few new bows and also looked alot on Archery Talk classifieds for a while to gain an understanding what used prices were for different brands - models. I purchased a 2006 Ross 337 with a sight, stabilizer, loop, limb dampeners, string suppressors and an STS for just over $400 to my door. Maybe I got lucky but this bow had ONE small worn spot on the front of the grip and the rest of the bow is in very good condition (including the winners choice string).
New this bow retails at around $625-$650 and the accessories I got on the bow are at least $100 so the way I look at it I probably saved almost $300 versus a new purchase. I am very pleased with the Ross.
It appears that there are alot of Trykons (Hoyt) and Switchbacks (Mathews) on the market as people upgrade to newer models within both lines of these respective companies. Although the used market has no guarantees, it's got something to offer.