Nope oasyses are not fl;ying around, but when a lot of people buy a Korg they think about the Oasys quallity when they buy it...As long as there are affordable near to profi keyboards like the PSR S900 or the Korg PA 500 two or three very expensive models won't crsh the market.
But then i don't think we will ever see such a machine from roland as they'd prefer to sell every single sound in its own hardware box....
Now thats the typicall Roland mentallity..