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Scales is out in Temecula- www.exoticlizards.com and some others.
I chose Uros after reading their site, in fact. Met my first one at Prehistoric Pets and then drove down to LLLReptile because Prehistoric couldn't sex theirs. I "met" a beardie at a succulent nursery in Solana and got attached, started researching, etc. Scales is the first time I saw or read about Uros. Prior to any of this, I would not have considered a reptile as anything but obscure decor (too many mean iguanas and creepy snakes growing up).
Since then (November?), I now have 10.5 Uros if I count the rescue case as a generous .5 for now. Two geyri, four hardwickii, two and a half macfads, and two sudanese (ocellata?)
Like Vonnie said, selection criteria were:
Vegetarian. I actually even eat a little bit of salad now as my diet os more balanced by virtue of having animals in the house as I'm primarily a carnivore. I have fed them crickets, but a few of them have been uneaten and are now singing to me all night. It sucks. Acquiring food is very convenient and it's fun to select the cashier least likely to know what the greens are just to cause trouble.
Personality. They are inquisitive little creatures. Personality and sociability varies per SPECIES and also per INDIVIDUAL. Beardies are, for the most part, one species as far as I know.
Size- Big Uros, small Uros, medium uros... whatever.
Don't bite. 'Nuff said. Don't stick your finger in their mouth because they WILL take you up on it.
Pricing. Uros tend to be priced higher for captive born/bred and then higher for more desirable for rarer species. Ornates may be desirable for various reasons, Sudanese and Somalian are rare and priced similarly. Beardies are priced VERY much on percieved value if you're looking for a bred color pattern. It's still a beardie, a common animal. I see beardie breeding as a more pop-culture thing and I hate pop-culture.
Variation. Various species are varied in more than color. Facial structure, tail structure, etc.
CITES Appendix II endangered species. I'm interested in breeding them, so if the animals have been imported I consider breeding them more important than anything else that is common. I have similar interests in plants. If Uro breeding catches on, it will save the wild population. If the wild population is depleted it won't be an option. It's an opportunity for my hobby to have a positive aspect on some component of the world- a fairly unusual possibility.
Desert dwellers. Hot and dry is easy. Humid is a pain. No water dish? Even easier.
That tail... face it, it's damn cool looking. Everyone remarks on it. I had a small female macfad delivered to work a week ago and everyone fell in love. Now I have permission to put a cage at my desk(it's in my car) and the rescue case is being cared for there. Sweet. It was a simple request- X other people have fish tanks; mine just won't have fish in it.
Faces- they have the cutest little faces. Short snub snout.
Vets- I happened to live next to an excellent vet. They should be easy to find in your area or I can recommend a short drive to OC 
Activity level- I thought a sedentary beardie would be cool to start, but I could get a pet rock if I want stationary pets or even skip the whole pet deal and watch the radio instead of the TV on the rare occasion I watch anything. Doing my homework with a bunch of little eyes watching me, each with their own agenda is interesting. There's always action.
Girls- I'm more likely to convince any would-be love interests that Uros are not only viable that they're also cute and pretty (very nice colors without selective in-breeding). It's a stretch, but not having a bucket of mice in my house nor in my freezer is highly beneficial.