Absolutely NO ONE is going to buy a fish that has a starting price of one thousand dollars. It's ridiculous. However, he might have meant it to be $100 and accidentally added another zero. It's possible.
And I don't think it really has red eyes, because it doesn't in all the pictures. It's probably the camera, or it could be photoshopped. Its finnage isn't even all that nice!
I am personally fine with taking them out of water to measure them. Like someone said, it's like netting them. Since they can breath out of water it's not like any other fish and they won't die as long as they stay moist. I found one at my LPS that had jumped out of the tiny hole in the top of its cup and was still alive. It hadn't done it recently because it was kind of sticky, almost dried out. I put it back in the empty cup.