I would honestly say, get whatever peaks your interest. I too am not into breeding - although most people on here say they started like that, and then decide to breed later on down the road. That may be why Ladybugzcrunch suggested getting females, just in case you decide to breed later on. Personally, for my first (and perhaps only) BP I didn't want something too overpowering, so I got a male. I'm hoping he won't get too large. I have a female corn who will probably grow longer than he will, and that's enough for me.
If you only *plan* on getting one or two BPs or so, and really just want it as a pet, I'd say go for the morph (in your price range) that you find the most attractive. That way you may not feel a need to get more snakes, if that makes sense?

Good luck!