Every gene type has its' pros and cons. Here is a short list of each

Recessive:
Pros-can be cheaper to make if you are willing to wait and deal with hets
Cons-Your odds of producing visuals are pretty slim if breeding het x het. The female hets tend to cost a good bit more than males. You also run the risk of receiving a snake that is not a true het, so make sure you buy from a reputable breeder, not a middle-man.

Co-dom and dom:
Pros-You can buy a male for lower than a female and breed to a normal female to make some visuals. Your odds doing this are 50% so still not a guarantee. You can breed visual x visual and hope for a super which can breed to normals and make all visuals.
Cons: Tend to be more expensive than recessive visuals with the exception of a few.