Wow! I can see this one two ways ....
First is, if you always wanted a Quota or want a Stelvio's grandpa from a simpler age, or just want this style of bike to put a lot of miles on, then the $6250 price is just the price of getting what you want, it's irrelevant what other's think it's "worth".
On the other hand, a 16 year old Guzzi isn't "collectible" like a V700, but isn't new either, and some very nice Quota's have traded (and probably will again) south of $4K. "By the book", a lot is being asked for it ...
If I didn't already have the Stelvio, I might go dual sport hunting in Calgary ....
Lannis