Yeah, me neither, but I have too many situations where I need to travel ultra light, and I just can't make it work. For example, this Friday night I'm at the Society Hill Sheraton in Center City Philly, and the load-in is horrendous. Parking is worse. With my 900, I'll be able to walk in with the KB and stand on a teeeny little, fold-up dolly and carry the Bose Compact with my free hand. One trip - no fuss, no muss. BIG sound, with "in my face" monitor.
If the 4x doesn't go, it'll be a great studio piece, and a fantastic organ for those very elusive, larger things where I might actually get to play one! Remember that thing I did with the Hammond in Morrisville, years ago? I think you came to that one.