$500-800, will get in several used saddles that are decent. Billy Cook (Made in Oklahome, not Texas, (some) Ammerman, (some) Courts, and (some) cactus.
A barrel saddle doesn't see the abuse, that a ropin saddle does, but you still need to stay away from the $500 new saddles. There a hot mess, by the time they see 2 years of use, and you just about have to give them away when you sell them. Stick with a middle of the road name brand used. Keep it oiled, and you should be able to get your money back still in a few years.