Hi Don,
I condidered the Midjay but, like Giovanni, I decided that there wasn't enough on it to suit my purpose. I rarely use Midi files or MP3's so I'm wanting a full top of the range arranger keyboard in module form so that I can work on/edit styles, sounds etc. and have plenty of panel memory settings at hand in live playing situations. I used to carry 2 keyboards but, apart from the extra load, this made it hard to use a music stand and I can't manage a full gig without reading the dots.
I also found, like Rikki, that my living room looked like a club stage with 2 Kb's racked up - much neater with a module.
Already considered Bill's suggestion of Wersi EX1 but lack of dealerships for sales and especially servicing (if needed), rules this out. Never heard of TMS or Bohm but these would be ruled out for same reason as Wersi.
Heard that Gems Genesys is good but temperamental - Top marks to Ketron for at least making an effort - what about an SD5/SD1 module to replace the XD3.
The main reason modules have not sold well in the past is because the makers always make a bottom or mid-range module instead of a range topper. Give it a try and there may be more sales than anticipated for the manufacturers. As Esh points out, a module also solves the problem for those who want a particular keyboard but with more than 61 notes or a better keybed.