[JamieEi]

Sorry, Comcast has been handed a monopoly franchise for broadband in many parts of the US, including Seattle. With their obscene profits comes an obligation to provide acceptable service in all reasonable cases. This is not an equal bargain between two independent parties -- the OP has ZERO alternative broadband providers and the real battle Comcast is fighting is against Netflix.

[koenigdavidmj]

Sorry, but Qwest and Clearwire both cover nearly all of Seattle as well. You can argue about how broad you have to be to be called broadband, but they are both going to be suitable for a home user.

[JamieEi]

I have Qwest because Comcast can't provide reliable service to my 1920s apartment building, and I only get 2.6 Mbps down. I wouldn't think I'd have to explain on HN why that's not a viable alternative. It's certainly not for the OP's use case of streaming video.