Actually it comes down to supply and demand. Just go onto Morphmarket and look at all the snakes that have sold. Most of them are sub $500 snakes. If you want to sell a lot more snakes I'd suggest selling cheaper snakes, the combo you mention is good. Not many people can shell out hundreds or thousands of dollars for higher end stuff. Most people want a pet snake and banana / spider / pastel is a good place to start in my opinion. That's the 'bread and butter' of the ball python pet market. Not many people produce higher end stuff because I think it's harder to sell. Actually my ideal pet snake on the lower end would be a banana spider. If you look at the big breeders they produce babies to satisfy the market. They have most low end stuff, some stuff in the middle, and just a few high end snakes. That mirrors the demand. Don't get discouraged that big breeders that have thousands of snakes for sale, they do sell them every year or they wouldn't be in business!