Interesting. I have U-verse in Soma. Apparently my apartment building has a "deal" with AT&T so that no other TV/Internet providers can work there. And if you're curious, the U-verse Internet plans are awful.
If you're in our building, you're in luck, though: the HOA is amenable to laying CAT5, so if things go well, we may have Webpass by the end of 2015.
These contracts aren't these evil things as much as they are there to recoup investment on the work AT&T put into that building. The neat part is that due to the cost of competitors walking in, the contracts don't even need to exist anymore. Its going to be a hard sell to get Comcast in there when AT&T already has the home field advantage.