They're not done. Not yet. The print world is doing great and Mondo still sells everything it produces within seconds.
I do believe however that their name has become the selling point, much more than the actual product. A lot of other venues have far superior art and artists but do not sell as fast. They should be careful though, because it's not going to last forever. When 2nd hand sellers realize that they cannot make a profit anymore, and prints sit on Ebay with no buyers, they will move on. It could happen fairly soon if Mondo doesn't go back to what made them famous and up their game drastically.
So not dead yet, but a little sick for sure.
T