I average probably a single 5 minute hiccup each month. That's 99.988% uptime. For someone wanting to run their WoW guild's voice chat server, or just a toy server, or a development/staging environment, that's plenty.
But I mean, my home internet is only 35 mbps anyways via Frontier FIOS. I can get 150 mbps through Comcast, but I refuse to give that company a penny of my money. In either case, I'm not going to be running any major production servers at home anyways.