I moved to Time-Warner in Minneapolis back in January and I regret it not one bit.
Spending only $20/month more than I was with Dish, I get:
a. Three receivers (1 HDDVR, 1 HD, 1DVR) instead of two (both HD-only)
b. $325 from selling my Dish receivers
c. All digital/HD locals (PBSx5, CBS, ABC, FOX, NBC, UPN) without an external antenna
d. INHD1 & INHD2
e. Both HD feeds of SHO & HBO, not just the east feeds
f. Better-quality HD video
g. Responsive tech support for the boxes (How long before the 811 got the full DD/optical fix? When's the 921's firewire being activated? Oh, you own them -- Dish doesn't care then.)
I'm under no obligation to stay with Time-Warner and can leave at any time. I paid $0 up front for the three boxes I have -- not even $250 for the "privilege" of leasing any of them -- so when I do leave (I'm moving in September), I don't have to try and sell off those boxes to get my money back.