I would have to agree w/the last post.. I hardly think they're evil (although husband would probably have something else to say).... We've been trading for about the last 2 years - but more seriously in the last 6 months or so.... I do both.. trading and keeping.. I like the 'hunt' factor in the parks.. and the excitement of finding a really good one (even have 10 yr old doing it now)... but I have some that I just couldn't bear to part with (ie any w/Walt Disney's face on them)