The price of a blue varies greatly. The price dropped from the thousands to the hundreds when Petco managed to get a hold of a shipment from El Salvador last year. The price has been creeping back up, but a few Petcos around the country got a few in this year as well. If you can find one at Petco, they sell for $150 but otherwise you are looking at about $500 for a hatchling.

The Petco price wasn't really the bargain it sounded like since, at least last year, many of them had serious health issues. I bought two and after about $800 worth of vet bills I lost my little female. I still have my male and, despite the fact that most of the iguana community was convinced he'd turn green within weeks, he still shines bright blue a year later.