Ha, I just looked at that ad too! Overall they just make me go "ehh"- not any specific reason, just nothing there that wows me. Definitely not the worst goats on the Kansas City craigslist though, and if I remember correctly Edwards tend to grow those goats on grass pasture with very little grain, which is a plus in my book (that was a couple of years ago though, so not sure if that is still true).
Corn prices are going down, feed prices going down, People are going to start buying this winter/spring. It is going to be a sellers market in my opinion with a bumper crop of corn and hay in many areas. My point, I am not sure prices are going to drop that much this fall like they have the last 2 or 3 falls.
Of the ones he has for sale, that is the best one. Savannas are known for their parasite resistance, superior mothering abilities and growth compared to a Boer. If you can, I would get him. Crossed on Boer does, I would assume you would get some kids with Boer coloring and some that are all white.