Zuki says it would take months to edit the PA800 to make it just right... What's wrong with that? Expecting something to come OOTB and be perfect for YOU is completely unrealistic. And expecting to beat it into the shape you need in time for your NEXT gig is equally unrealistic.

When I bought my G70, I did not sell my G1000. I spent maybe two or three MONTHS tweaking it, voicing it, converting styles and SMF's to sound their best on that particular keyboard. Only THEN did I go and gig it. And only after I had gigged it a few months did I sell my G1000.

If you take the time pressure off yourself, and give yourself enough time to explore the full potential of a keyboard, and the changes in workflow and technique that ANY new piece of gear is going to force you into, WITHOUT taking it to a gig, you easily avoid the mexican jumping bean approach to gear purchase. There is only one piece of gear you can buy that avoids this.... Another one of what you've already got!

But if you find yourself selling gear because it doesn't work for you immediately, try not selling what you are already comfortable with until you are comfortable with the new. For as long as it takes. There's a reason you bought the new in the first place... The sound. It blew you away in the store (or else, why did you buy it? For TWO MP3 players? ). That's not going to change when you get it home. What has to change is YOU... No arranger OS is perfect, they ALL differ in some quite substantial respects. But the sound... that's what you and your audience hear. You want that sound, you GOT to use that OS. So just being patient with the OS, accepting it's differences, and using (even inventing!) the workarounds takes time.

Force it onstage too early, and back to the store it goes! ADD arranger 101.

Even a new model from the same make you already have will present you with a LOT of OS differences (unless it is such a tiny incremental improvement it hardly bears buying!). If you are completely comfortable with what you have, DON'T BUY ANY MORE ARRANGERS. No matter HOW good the sound, unless you DO have a few months to tweak it, and the ability to change how you operate it, the sound ain't worth the pain...

But if it IS.... just suck it up! Do the work. Take your time. Get it right. Then don't buy another one until something else is just SO amazingly, unbelievably better sounding than what you just bought. That's about ten years or so for me. That's ten weeks or so for Donny Maybe he just has a much lower level of amazement...