OK frist off the Blue has not been classified, but a french zoologist did photograph a few blue tegus in Brazil where its though these lizards are found. Its now thought that the first blues where caught in Brazil but there is no exporting from brazil so they were shipped in with a batch of comlumbians. As of right now the general idea is that they are closly related to B&W but are not a color variation.

AS for price this year looks like prices are gonna be on the high side. I got mine for steel at $175 but right now they are going for $300 of het, and even more for Snow or Albino.
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Leo Gex
1.0 Giants
0.1 Red strip/hypo
1.0 Patternless
0.2 Normals
Others:
1.0 Giant plated lizard
1.0 Blue Tegu
1.1 dogs
2:0 chinchillas