The Normal price would be something like $6000 for the 88 and $5000 for the 76.

I expect these prices to rise soon, as it is still the best sounding hardware workstation and its in high demand while the numbers for sale are really low.
When people realise that there is nothing comparable to an Oasys for the next few years the prices will start rising despite the crisis.
The only thing coming close are the VST based instruments, but they are not yet on the professional level of the Oasys... atleast untill Openlabs presents then GEN6 instruments including KARMA and with 76 or 88 keys, which will not be anytime soon...