I've thinned my pile down a couple times, just about in half last time. Dont regret much of it, just one or two things.
An old friend, when I asked him why he sold a particular gun, said "It's interesting, but it's not important". I think on that when I want or need to sell something.
"Far better it is to dare mighty things, to win glorious triumphs even though checkered by failure, than to rank with those poor spirits who neither enjoy nor suffer much because they live in the gray twilight that knows neither victory nor defeat." -Theodore Roosevelt-