At least part of it is that uros are not easy or prolific breeders. Most people looking to breed something for a business wouldn't choose uros - they'd go for something like beardies that breed often and easily. Uros only clutch once a year and the eggs can be difficult to hatch out. Uros also have more persnickety care requirements (heat, enclosure size, diet, etc) that makes them more time-, money-, and space-consuming than other reptiles.
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Torey

Eugene, Oregon, USA

1.1 Saharan Uros (Joe and Arthur)

3.0 Mali Uros (Spike, Turtle, and Tank)

1.1 Ornate Uros (Scuttlebutt and Shazzbot)

0.1 Collared Lizard (Rorschach)

2.0 Green Anoles (Bowser and Sprocket)

1.1 Chubby Housecats (Roscolux and Jenny)

[ Hide Replies ]

• Just out of curiosity - beardielover17, Tue Jun 3 15:42:47 2008
• RE: Just out of curiosity - el_toro, Tue Jun 3 16:42:52 2008
• RE: Just out of curiosity - beardielover17, Tue Jun 3 17:00:39 2008
• RE: Just out of curiosity - kinyonga, Tue Jun 3 22:01:12 2008
• RE: Just out of curiosity - mrslate, Tue Jun 3 17:57:27 2008
• RE: Just out of curiosity - Rosebuds, Tue Jun 3 17:59:32 2008
• RE: Just out of curiosity - el_toro, Wed Jun 4 00:37:10 2008
• RE: Persnickety :0) - PHEve, Tue Jun 3 23:24:02 2008
• RE: Persnickety :0) - orangudan, Wed Jun 11 23:02:05 2008
• RE: Persnickety :0) - imthememaw, Mon Jun 16 13:26:17 2008