Rogue Leader :
The 480/580 phenomenon has definitely slowed. You can now find them for $280 to $330 on ebay. a month ago they were $380-$400
I think that may have more to do with a production ramp up which Lisa Su mentioned in their earnings call.. It was bound to happen I guess.
I don't believe Vega would of been available in massive quantities anyway HBM etc..
I guess now if it is just a paper launch we wont be able to tell, as it will just be blamed on the miners buying up all the cards !