So I am attempting to reach an understanding as to why, over the past 3 years, the value of some firearms has gone vertical. A good example of this are the Colt Pythons. I purchased a very nice blued 8" Python 3 years ago for $1000. The same gun, in similar condition, are showing up all over for more than $3000 (asking). This trend also seems to be affecting other guns as well, such as HK P7s and some of the rare models of Dan Wesson revolvers. These are just 3 brands/models that I have paid attention to, but I'm sure there are plenty other examples. Why, what has changed? Has the US Dollar lost value?