The living sea had a couple nice ones yesterday.... 45 bucks.
I've been looking for one too..... it's been rather frustrating. I've been to THREE local shops that told me they had one in stock, only to find that they have mis identifed another blenny as a midas. Two of those shops are generally held in high regard by most people I talk to. One shop pointed me to a bi color, the other to a sailfin or something (all black). ...I would not think the midas was so hard to id.