TBH... how many of us actually sample our own sounds? Using a keyboard, no less! That's pretty 20th century thinking, there!

Most of us simply want to be able to import sample sets already made, and having access to standard multisample formats is paramount. Soundfont and Akai are the two big ones, if memory serves me. This is where Yamaha screwed the pooch, getting greedy and only allowing their (mostly unsupported) own proprietary format for multisample import. Having 'Wav import is all well and good, but that's ONE sample at a time. A good drum kit or piano can be HUNDREDS of samples, mapped to keys and velocity ranges. I doubt many of us have the skill and patience to import each one by hand and map it..!

Overall, I think the PA900's decision to just have multisample import but not the actual recording is a wise one. Few of us sample instruments, and even fewer would do it on a keyboard if they had a computer handy (and who doesn't? LOL). Just as long as the full list of PA3X import standards made it to the PA900, you are good to go.