Well, as much as I hate to admit it, they (pet stores) are my first line of information. Also, much of the information on the internet regarding leos points to the direction of these being the perfect pets for absent minded owners.
Obviously, experienced leo owners would disagree, but humans in general tend to be stupid, presumptuous animals, myself most definitely included. I see people over complicate the simplest of directions daily in my line of work, so it isn't any stretch of imagination to think this logic would follow over to reptile care. IE...if a little is good, a lot is great.
So yeah, my leos are kept on sand substrate, with Flukers moss in the hide, and one end of the tank is about 80 degrees while the other 73, this is what I was told by the people who had the lizard before me, why would I automatically assume these people were wrong? They've had leos longer than me, who am I to argue?
I think the idea of keeping these animals on paper towel substrate with vermiculite hides is ridiculous, I mean, could ANYTHING be further from their natural habitat? Seriously, vermiculite was never meant to be part of a reptile habitat, it's designed for use in addition to potting soil for plants, to keep moisture at a desirable level.
These are desert reptiles, right? Isn't a desert mostly sand? I haven't been to Pakistan, Ahghanistan, Ignoristan, or any other Middle Eastern desert for that matter, but I'll wager none of them are completely covered in paper towels with little holes filled with vermiculite moistened with tap water.
Sorry if I sound like an asshole, but in my experience, humans trying to replicate what their idea of natural habitat is often falls desperately short of reality. At the same time, the leos I have are bred from stock so domesticated, they may just be more comfortable on paper towels. Until I master communication between the species, I may never know.
But then, that is the reason I sought out this forum, to learn from those with firsthand experience, so that I may be able to better provide a healthy environment for these little jewels, by having many different sources of information rather than relying on the pimply faced nose ring telling me what's up in the pet store.
Unfortunately, like many internet forums, it seems maybe there should be two leo forums here, one for the experts to argue about who really knows more about just what a leo wants in life, and one for us morons to slowly kill our pets with our own shared ignorance.
Again I apologize if I sound jaded, many of you do provide sound advice in a polite, respectful manner, but some of you really should just go out to a bar and argue the finer points of the selection on the jukebox....