Get whatever you have the most fun with. We all have different plans.

If I asked this community which project of mine I should expand (BPs, carpet pythons, hognose snakes, rhac geckos), I'm sure that 4/5 responses would be to get a BP, particularly because our next purchase is going to be really cool male (ideally a het hypo enchi lesser) to add to our SPOG project. However, since we haven't hatched out our first SPOG yet, that's on the backburner, and we've already decided that after our first clutch of het albino hoggies, we're going to invest in an anaconda het albino hognose, and we're saving all of our income from selling our various hatchlings to move our rhac project from focusing on crested geckos and hopefully switch gears to leachies in a few years.

Of course I'm crossing my fingers that we'll see a SPOG (or at least a POG) female soon, and if it happens.. that might instantly become project priority #1.