I'll miss him in WWE. Kurt isn't enough to make me watch TNA though, I don't like that stuff at all.
I heard that he chose to move over to TNA cause he didn't agree with Vince about slowing down. Vince wanted him to slow down and take care of his health cause of the pain killers and all, and he didn't agree. Either way apparently TNA isn't as stressful as WWE cause they stay in the same location mostly. But that's what I heard, so I don't know how much truth it is in it or not though.