@chipcalzone -- I know you directed your question at Jerry, but I thought I'd share my 2 cents anyways :)
I had compared both a50i and x200, but not at the same time unfortunately. I preferred the a50i by a wide margin. IMO, it has more clarity, refinement and slightly more holographic imaging. The X200 offers more features for sure, but in case of a50i all the cost goes towards higher quality parts and design. The one thing that I love most about this amp is the soundstage depth. It's the first time in my system that I can hear sound coming from a few feet behind the front wall. I've owned Audio Research GSi75, VAC Sigma 160i SE, Raven Audio Blackhawk, and Rogue Audio Cronus Magnum II prior to the a50i, and there is simply no comparison. This amp is that much better. The only thing you'll miss is the bass slam of SS, but that's true for most tube amps. However, the bass you get with the a50i is somehow more nuanced and satisfying. I'm currently borrowing a VTL I-85 (EL34 but 60 watts) from a friend for my second system. Amazing amp but not as refined and holographic as the a50i.
I suggest you contact Well Pleased A/V who is a dealer for Audio Hungary. They are good people and will give you honest advice.