How does taking advantage of purchasing prudently at the time the now collectible firearms become hoarding???
If it weren't for people that were truly interested in the history of those firearms and loved the way they were designed and handled, BUBBA would have had his way with all f them or they would have all found their way to the smelter.
OP, be happy some here had the foresight to preserve the pieces that exist now. That they're out of your price range or becoming difficult to acquire is part of the game.
I'm getting a bit long in the tooth myself and over that past few years, have been allowing new firearms enthusiasts, for a reasonable price, to become the caretakers of most of what was once an extensive collection of firearms dating from the mid 1700s to present day.
In truth, they were one of the best financial investments I've made. The returns have been fabulous. Much better than gold and much more consistent/reliable than the stock market. About the only thing that gave a better return was land/houses.