Frank, both species takes up the same amount of room in a cage. Both eat at long intervals between meals.
Setup is almost identical so care is pretty equal.
I couldn't decide also, so I got both and lots of them too. The interesting morphs will follow after the first couple you own and its all down hill after the first one too. You just cant stop youself. A 4 foot animal is no more room needy than a 5-6 footer. A 2x2x2 cage will suffice, but bigger is better in cages.