To give you a constructive answer.

Anything that is downtown will be fine. At this point you're sort of in a "take what you can get" phase. It'll be pricey I'm sure. There are buses out to the starting line early in the morning. It's much better to do that then look for something way out in the suburbs and then have to get BACK there after the marathon when he's tired and there's no organized bus or whatever.