It's interesting to see this all worked out. It puts it all into perspective of the benefit of a more expensive goat.
I remember distinctly going to a farm that raised pretty low quality Boers, no offense to them. I bought a buck kid from them for $150. The dam was probably bought for the same price as a doeling. They said that it was getting too expensive keeping the Boers and they wanted to get rid of them. I thought to myself, of course! You pay $200 a year for vet, feed, hay, and other expenses, spend probably $100-$150 for a vet to come out an inseminate your doe, that cost you $150-$200, and then you sell the kids for $150! Not to mention the cost of the labor! No wonder they are struggling to break even.
This was a couple years back. I visited a farm this spring that raised Boers, very very very high quality expensive ones. Some of the nicest in the state if not the entire country. Their prices ranged from $1-$2k. They never complained about the price. Why? Could be that they just didn't like to complain, but more than likely it is because they spend the same amount on vet bills, hay/feed, insemination, yet their kids pay for the doe and the costs of AI and care!
People are so hung up on initial cost that they fail to look at the big picture. You will no doubt spend the same amount of time and money caring for a cheap doe as an expensive one. Might as well make a smart investment and get a doe who can pay for it and net some cash.