Thanks for posting the link. Thoroughly enjoyed it, & it helped me articulate what has become my "accumulation" (it doesn't deserve to be called a collection, too lofty of a title!).
I have found that I like handguns best, like shooting them, admire the differences in their designs, and like the historically significant designs. So I've ended up with a collection of mostly surplus 9mm handguns. Some of the "reproductions" aren't in the original caliber (a Tokarev design in 9mm, and a 1911 in 9mm - I know, that's blasphemy to JMB's name), but the FNHP, P38, CZ75, & P226 are retired service sidearms. There's as much enjoyment in the history & design as in the trips to the range.