Coastals are pretty common, so they are only around 100 to 150. US $ of course. Maybe around 300 for an adult. I got a pretty good deal on my olives at 500 for the pair. Normally around 400 each for hatchlings. VERY hard to find though, so I got real lucky. I had a line on 4 more for 1200, and it was a done deal till the wife shot me down. Damn home improvements and new cars. I don't know where she gets off thinking that crap is more important than snakes.
