Hello,
I appreciate your help. I looked up WH Thompson's to try to figure out how much a auto .22 is worth and saw a variety for sale, but only one full auto .22 which is being sold as part of a $25,000 collection: http://www.arms-ordnance.com/inv/Thompson~5.html I figure that the auto .45 from this collection would go for $10,000 or so, and the three semis would be worth $4,000 or so based on the prices I saw at GunsAmerica and those kinds of sites. That means the accessories and auto .22 would have to cover the remaining $11,000 and I really didn't think they were worth that much.
I was wondering about a few other things too. From an investment point of view, what's the deal with guns that are really old and have all original parts and matching serial numbers and all that stuff? What I mean is let's say I get the auto .22 and decide to have a gunsmith tune it up, shoot the hell out of it, and so on. Will that be like buying a new car and having it lose a lot of value the second you drive off the dealer's lot, or do machine guns hold their value even if you can no longer claim new and unfired with original parts etc? I'm guessing that Thompsons and M16s and those types of guns wouldn't lose as much value from shooting because they are relatively common (at least as far the military is concerned), but really rare and exotic MGs would.
I would like to get some MGs for investments, but I can't imagine having an MG and not shooting it because it would lose value. I guess the best thing to do would be to get two guns, one to shoot and one to keep in mint condition, but that would take some serious $$$.