Normally goats loose their baby teeth between ten and fourteen months of age, although there are exceptions. There are several different things to look for when choosing your show prospect. Try to purchase a goat that has been castrated, disbudded, weaned, and on feed. This will prevent a lot of setbacks. Try not to look at color till last.
Flashy colors are pretty and sometimes people overlook the faults due to a pretty color.
Remember fat and flashy colors hide a lot of faults. Write this information down and keep it for future reference. It is unlikely that a structurally incorrect doe will produce good show kids. When looking at prospect wethers think structure first. Look at his head and neck - check his teeth first.