I'm an ENTP and although I've collected quite a few things over the years, I can't say that I've ever taken much pleasure in doing so. Every few years I get the urge to get away from the things I've accumulated and live as simply as possible. I go through occasional purges and wonder what the hell I was thinking when I bought most of the stuff. I know this puts me at odds with many, many people who just love stuff and can't seem to get enough of it.
So the question is which types or temperaments are more likely to collect things.