Have to agree with Golden Chipmunk. 1/2oz Monkeys are approx. $17 at the moment so if you can find snakes or horses around $15-$17 buy all you can.
Declared mintage on the horse is only just less than 250,000 (less than the dragon which was close to 390,000) and 160,000 mintage on the snake. While the dragon will always be more popular, you will find over time the snake will be harder to get. Although if you want really good returns chase the earlier ones (mouse and ox at about 17,000 and the tiger at about 50,000) as their mintages were much less. Even the rabbit at 124,000 I'm finding very hard to source now and prices are rapidly moving up.
malachii