RE: which? JR PCM10X or Futaba 9Z WC2?
It's all in how you look at it ------ I'm one who went flawless 10X to DX7.
The other point is to sell while your current gear will still bring a good price: I did and it did.
I really am impressed with the features offered by the DX7 and speaking about price ---- well you can't do much better than a DX7.
I loved my 10X but felt it was time to move on. If JR or Spektrum offer a new 10X or 12X and I like it and feel I can use its features I'll move on again.
I see little or no advantage in waiting.