Oh, sure. If I were ever offered a really sizeable chunk of cash for it or had to sell most or all of it for some reason. I love my collection and I've spent years putting it together but selling much or even all of it for a very good price has always been negotiable even if it isn't necessarily desired. I just have yet to meet the person who wants to buy it, mostly because of volume reasons. I have a little too much for some collectors' tastes or they already own what I have anyways.
My most treasured and beloved pieces? My original Star Wars
action figures and other toys from my childhood...the original 1978-85 Kenner products. They're no longer in production, have a ton of sentimental value and cherished memories attached to them and the original, classic and vintage stuff just keeps getting more and more popular as time passes. As primitive and cheesy as much of the really old stuff is, it remains something that tugs at the ol' heartstrings.