I’ve never seen the value, for the premium they cost, against other great cards that are available.
I’ve got a more than a few KEM setups, but they do tend to bow and the ink wears away after only 3-4 uses. Not very impressive in my experience. Sure at first, they feel like the best cards but they don’t make me want to go buy more with the results I’ve had.
I’ve had much better results with Fournier and Angel, and a few others.
For me, nothing beats the overall nature of Desjgn!
It’s all a matter of subjective opinion. Lots of great cards to choose from. There is likely no stopping the price increases for all cards probably.