Just FYI If you like the Korg (or the Yamaha or ..) consider KRAFT music (I don't work for them or get free booze from them or..)
Unless you can get a super price elsewhere, Kraft always offers bundles of useful stuff (stand, expression pedals, cables, cover, etc.) usually at same MSRP as just the board!
FWIW - 've never had issues with Kraft - they deliver exactly what they promise.
https://www.kraftmusic.com/brands/korg/arrangers/pa4x/https://www.kraftmusic.com/brands/yamaha/pianos-keyboards/arrangers/genos/Larry
PS it's funny hearing about "streaming samples with no loops" from the internal HDD and similar a decade later, I've had those features for years on my Alesis Fusion 8HD as well as 8 track external (to internal) audio real-time recording,and... for that long. Granted the Fusion is not an arranger, but neither was the Oasis, it is just a workstation. The Fusion was the most panned by the press, and maligned board by early users becasue of the "dated" factory patches. I have a couple hundred BANKs of well over hundreds of non-factory patches (commercial and user made) only limit is HDD space. Unlike 99% of other synths banks can have 0 to thousands of patches and you can have thousands of banks (neither patches or banks are limited to 64, or 128, or 256, or even 512)!
While no one likes to say it it was the blue-collar, working mans, Korg Oasis at ~ 25% of the original Oasis MSRP. Glad I got one, discounted for almost half of the Alesis MSRP, before they went out of production by Alesis within ~2 years of coming out.