Few guns are investments in my book.Unlike a lot of other things,you can usually get your money back however,your "interest" being the enjoyment you got out of them.I recently sold five quality guns.Bottom line is that I about broke even on guns owned on average,five years.For the ones that you think you are making a few bucks on, deduct the commissions and transfer fees,sales hassle,and it's not so wonderful.Not all are as liquid as we would like to think.
Buy things that you like,want to use. A possible fifty,hundred,two hundred extra down the road on a supposed bargain,is small change,and many other better places to throw the money right now.