Eddie, If you do not know what to do with them you are not going to bother. You have quoted the first rule of a potential livestock owner, so the rest will fall into place easily.
I kept about 80 Angoras in Australia and about 15-20 meat does here. The Angoras ran with the cattle over 3000 acres, plus the neighbours' or down the road when they felt like it. Pigs and kangaroos meant fences were far from goat proof. Here goats are the only four legged stock. No matter how good the fence a determined goat will climb or jump it. I have had bucks jump a standard farm gate. I have also seen a doe get over a 5' wall by "bouncing" off a nearby tank to get leverage for the extra height. I had been wondering how she was getting out. Obviously I cannot answer your question about local marketing, and mine go direct to an abattoir because there are no auctions, and private buyers always try to screw you down and waste your time. At least direct to an abattoir I get the going market rate - good or bad. I also choose the sale date and do not have tyre-kicking would goat eaters or parsimonious buyers visiting when it is not convenient.
I assume you have not previously kept goats, so a simple rule is that they are basically browsers which will graze frequently. They are creatures of habit and in Australia I expected mine to visit the alfalfa fields every afternoon for a couple of hours. If they did not I knew they had gone a-wandering. It is essential to house them every night here because of uncontrolled dogs from various villages a few miles away. Pigs, foxes, mongooses, martens, etc. will take little ones. Any bigger predators, including I guess all members of the dog family, will take adults. I give them a small amount of grain or concentrate in feeders in their night shed. They either see me and come running, or a whistle and they then come running.
My experience is contrary to tcreeley, and I find they will not bare a pasture (mainly because they are, contrary to general opinion, fussy eaters) and will leave a reasonable amount of growth unless they are forced into eating it. They are more likely to break out first. They will never totally clear scrub, always leaving something to regrow, or you to clear up, but they will make great inroads and let you clear a patch much easier than if you had not used them. I would not attempt to keep them unless you have a lot more browse than grass. Just a personal opinion and I am sure there are many goats kept solely on pasture. They will eat a lot of prunings (fantastic for utilising olive that would otherwise have to be burnt) including twigs, anything up to an inch if palatable, and the bark of bigger stuff. They will also ringbark trees if they take a liking to the taste.
If you do decide to go ahead, have a look too at Angoras for their fleece. I like the breed, Texas has some outstanding animals, you can keep the wethers too, and it is a lovely fibre. It might suit you better than having to market small numbers of animals on a regular basis.
