If you're going to play live, then I can understand this as being a big issue. Find what works best overall, or continue to search.. I guess these are the only choices. I think UD understands this pretty well, and in a way, so do I.

If your composing / playing at home / in the studio..etc , you can do so much in the computer too. I don't like my PA80 piano sound, but I like the styles. I also like the Yamaha styles too, ( some better and some not ) but for this topic's sake.. if overall I liked the PA80's / PA1x's better, then I think I'm gravitating toward that board because it has the styles I want.. since that is the reason for having an arranger in the first place. Again, playing live is another story and the whole package becomes a little more important to me ( vocalizers, sounds, OS..etc )

There are several good software sampling options to add that piano sound or horn that the PA doesn't give me. There is also the option of adding a workstation to assist in my composition. There are the hardware types ( Motif's Triton studios..etc ), but also some pretty good software contenders too.

In the studio, the options are plentiful. In a live setting, you're out there.. All you really have is your skills and your own ability to entertain. The keys and other equipment are just tools that assist you in doing so, but I understand the desire to have the best tools you can for the job at hand. I was a carpenter by trade. I wasn't bringing a department store's $39.00 circular saw to a job to do framing work.

AJ