I just have 1 ball python at the moment because it's all I can afford to equip and feed right now. My next snake will be a rainbow boa because I just love them. I used to have an iguana, but I had to give him away because my ex was terrified of him and wouldn't allow him out of his tank which was rapidly getting too small. I am totally enamored of the idea of having a large dinosaur-looking lizard roaming around my house and would like to get another one. Thats about all the responsibility I can handle, so I'd have to stop there.
On the other hand, there's some really gorgeous bp morphs and I would love to have babies... So I might change my mind someday.