Last December I purchased a Spider Male for $7,000 several females. My male was an '04 that was 350 grams. Within a couple of months he got to 485 grams and I began introducing him to the adult females I also purchased that winter. He ended up producing 3 clutches and over 10 spiders. I was able to sell several spiders for cash to recoup my initial investment profit, then put together some trade deals for other snakes I wanted.
Co-dom & dom males is where it's at if you want to recoup your money very quickly because every normal female is essentially a het. However, expect prices on baby co-doms to drop almost of what you paid when you go to sell a season later, and another 50% cut from there -- so if you miss your first breeding season, the next season prices will be about 25% of what you paid for the babies you produce. Spiders and Pinstripes are very prolific breeders and become reproductively active at very small sizes, however, this is not necessarily true of all spiders & pinstripes or other morphs (which have their own idiosyncracies).
Pieds and other simple recessive morphs (excluding ghosts and axanthics) seem to be very in demand. They take a lot longer to work with and don't seem to be quite as hardy as the co-doms / doms, taking longer to get them up to breeding size. Because they take longer to produce, their prices don't appear to depreciate as quickly. As new combo morphs are produced (like the Spied) it creates more interest in the older morphs.
Regarding being a newbie and being able to sell your animals -- Kingsnake provides a terrific resource and somewhat levels the playing field. The key is excellent customer service.
I got into ball pythons because I enjoy the snake and saw an opportunity to work with them and make some money. I didn't get into this to become the next Brian Barczyk -- it's a hobby. I enjoy the diversion from reality and the thrill of watching baby ball pythons hatch. It's incredibly cool. I also enjoy thinking about combo morphs and hope to eventually prove out some new morphs and produce some designer combos that have not yet already been produced.
The key is to have fun. If you have fun, the money will eventually follow. If you have to make back your money immediately, it can be done, but you have to be prepared for the reality of supply and demand. Don't expect a morph you spent $10,000 on to produce $10,000 babies a year or two later -- there are more of them produced and for sale in the market than there were when you bought the morph. Also, most people who could have afforded the morph at the higher price point have already bought the morph -- that means more supply and less demand at the same price -- prices have to come down so the next tier of buyer can purchase at a lower price point.
Best wishes,
Python Joe