One of the most important considerations before breeding snakes is the ability to move them out once they are produced. It's good that you considered this. Most will be easy to move out by giving them away, but others will be difficult to sell. You could produce many attractive corn snake morphs and sell them at wholesale prices. Understand that will probably get only $15 dollars or so for most of these each (i.e. albino corn snake). Ball pythons are so prevalent in pet stores (imports of course) that it will be hard to sell captive born (people generally do not yet understand that the captive born is worth the extra money). I'd say either fork out some big bucks and get some high end ball pythons (can be sold fairly easily) or get a large group of the most attractive and marketable corn snake variety on the market today.
BTW, the single most important investment in breeding snakes is the initial set up (caging and temperature control). Do not skimp on the set up! Once could house 100 pair of breeding corn snakes with eggs and baby racks in a 10' by 10' room if properly designed. Think efficiency now and you'll thank yourself later.
If you do go large scale, DON'T FORGET ABOUT THE RODENT COLONY.