RE: How much does a bow depreciate in value
I'd say 20-50% from MSRP afterthe new year's models come out.
If you're looking at the prices of most used 2006 models, you'll see that the prices are in that range from the bow's original (2006) Manufacturer's Suggested Retail Price.
Edit: I thought we were talking about an '06. Sorry. If we're just talking about used bows in general, each one retains value differently. Depends on how it stacks up against the current (2007 models), how well it has been taken care of, whether it's L or R-Handed, draw weight, etc... Usually lefty bows have a lower resale, as do models with weird draw weights (40,50 pounders).
The one-cam models seem to hold their value better, b/c there are '99 one-cammers out there that are just as good as a lot of the 07's. Not much difference other than the camo pattern and the label.