They'll probably make a large sum of cash out of it, too, and subscribers definitely won't see a decrease in their bill.
I was rather surprised myself when I priced out wireless service; AT&T came out $20 more expensive than everywhere else and their reps couldn't come up with a way to give me a more competitive price. I went elsewhere (as I was planning to do anyway).
Unfortunately I am stuck with AT&T for my residential internet access; my apartment isn't wired for cable (and refuses to let the cable company wire it), AT&T is the only available phone service, and sonic.net doesn't have a nearby DSL hub. That leaves me with U-Verse, dialup, or something wireless (and therefore laggy).