In my opinion there are to many cons that out weigh the pros, sure having reptiles sold in pet shops will get more people interested and promote the hobby but it will also promote more neglect to these innocent creatures. For example I was at my mates house not to long ago and his younger brother had purchased a baby blue tongue by getting his mate who had a licence to buy it for him. he was keeping it in a small tub not much bigger than the bluey itself with a old sock for "warmth" under his bed in the dark. So I told him that lizards can't produce there own body heat and that he needs a source of heat or it will not survive i also told him a few other crucial details in order to keep him, so of coarse he agreed to get what he needed and that was that. About a month later I went over there again and sure enough the lizard had died because he simply couldn't be bothered to get what was needed. The amount of times this sort of abuse and neglect will happen now will sky rocket. yeah, sure in most cases this wont happen and the reptile will get the love and care they need. But just because a pet shop owner may quickly educate the buyer on what is required to care for the reptile doesn't actually mean the reptile is going to be looked after!!!