National 1/2 or Full Marathon?

So this morning Geoff and I were looking at signing up for the National 1/2 Marathon. But before signing up we decided to look at the course for the 1/2 and full. Upon analyzing the marathon course Geoff, the same one that wasn't a fan of all this crazy marathon training stated:

"We need to do that"

Does anybody know what got into him? Has he really turned into a marathon runner?? I do have to say it looks like a really good course with a small amount of runners compared to Marine Corps marathon. Looks like we might be doing another marathon...