I've played Stagis and really prefer the Jack's sound. I'd advise looking for one on eBay. They do turn up.

I had my eye on a USAn eBay seller for a while last year - they seemed to have an inexhaustible supply of Jackies and Jacks, at a USD price which would have been an absolute steal at the time. Then the exchange rate went silly (or less silly, depending on your perspective), I hit cashflow problems and the USAn Wakker-seller stopped selling, so that was that. Hopefully they'll be back - it sounds like I'm going to end up going for a Jack, which was my original idea (unless a really persuasive advocate of duet system boxes turns up...) Great discussion, anyway.