Dropped $28 today on fuel for the marathon. Actually won't use them all, but isn't that kinda steep: eight GU Energy gels and three sport beans packs.
Decided a month ago that I'd go with GUs this marathon. I tried them on a lark and I immediately fell in love with them. Compared with Clif Shots and PowerBar gels, I find them less dense and easier to digest. They also, I've found, taste a little better, partly because you don't feel like you're choking on thick pudding. Believe me, choking down gels while running marathon pace is no fun at all.
In all, they're pretty similar to the other gels (see comparison data). I'll have to figure out the sodium intake, maybe i'll pack some Clif Shot Bloks. I plan to take one every 10K or so, plus one at the beginning, so that'll be about four i'll consume. Still thinking about bringing my fuel belt. We'll see.
Also, fingers crossed, weather's looking better -- high of 13C mainly sunny.