I definitely follow mythoughts advice, call retentions. They will probably get you a pretty good deal for staying. The problem with starting a new account in someone else's name is that you have to return all your current equipment, so if you have anything saved on your DVR, it will be gone, it cannot be xfered, and you will get all new equipment. Plus, you also have to keep in mind that a credit check is done with any new customer,and depending on the result, there may be an advanced payment due.
*I am an AT&T employee and the postings on this site are my own and don't necessarily represent AT&T's position, strategies or opinions.
I have gotten special pricing and promos through CS, and CC but it all depends on the willinigness and/or knowledge of the CSR you talk to when you call regular CS. But the deals are their whether they are advertised or not.