I'm sad to see it go, but I'm one of the people who had the sub for the first two years, and didn't renew this year. The figures announced looked good, but costs were getting high and I felt I already had most of the "must have" figures. Although I'm a big enough DC fan that I want *most* of the figures, I have been in it since wave 1 of DCUC. After 18 waves of that, 2 waves of green lantern, 2 years of subscription and assorted box sets and exclusives, plus some of the early DC Superheroes ones - I've got a ton of figures.
Even still, it really came down to cost for me. This past year each figure has been around $32 after shipping (to Canada). Quarterly shipping would have helped, but I wasn't sure if I wanted to commit the money this time around.
The line has lasted a lot longer than I ever could have imagined, and we've got some really cool stuff out of it. If anything I say thanks to Mattel for making it last as long as it did. Superpowers was the previous high-water mark for DC figures for me, and this line blew it away.