Glad to hear you're enjoying your purchase. I bought my first separates last spring, 990/7125. I wanted to go with the 7500 too but unfortunately Outlaw didn't have the amp sale last year so I had to go a step down. Yes. I am more than a little jealous.
I couldn't agree with your 990 observations more. Since I got my 990 it's like I have a brand new music collection. I just keep hearing new things in music that I thought I knew very well. One of the best purchases I've ever made.