I cancelled my Team Performance membership about a year and a half ago, mainly because I was already kitted out pretty well and the things I needed I needed to get from multiple sources (a la Yo Spiff and MMACH 5). If I'd been paying more attention I would have mentioned a drop off in choice, price, and availability.
Then right about on the one year anniversary, I see a $29.99 phantom charge show up. It turns out they just banged through a "renewal" and it wound up taking a couple of emails and a couple of weeks for them to finally un-renew and re-re-cancel me. I'm going to be watching them in 2013.