Possibly because their business service has a lot more competition than their residential service, hence lower margins. Comcast business service is actually a

Possibly because their business service has a lot more competition than their residential service, hence lower margins. Comcast business service is actually a bargain, at least around here. You pay maybe $15-$20/month more than you would for bare-bones residential service, you get to run servers if you want, suck down all the Netflix you can watch, and you get instant access to US-based tech support. Also, my understanding is that the various MAFIAA BitTorrent enforcers avoid targeting business-class IP ranges because unlike Grandma in her basement, businesses tend to put up a fight. I wouldn't even think about going back to a residential account at this point. Given my household's usage patterns, I can't imagine Comcast makes any more money off of me than they would if I had a residential account, so I wouldn't expect them to upsell me aggressively if they were otherwise trying to get rid of me.