To really compare, just do the difference in %
Sweetwater:
P12: 2999, Desktop 1799, delta $1200 = -41%
OB6 : 2999, Desktop 2299, delta; $700 = -23%
P6: 2799, Desktop 2199, delta $600 = -21%
REV2/8: 1499, Desktop 1299, delta $200, not $999 ? = -13%
REV2/16: 1999 , Desktop 1799, delta $200, not $1499 ? = -10%
If you apply an aveage of 20%, the Prophet REV2/8 would have been 1199$ and the REV2/16 would have been at 1599$ anyway...Well, yes, if the margin is smaller than usual on the keys version, removing just the keyborad plus the cost of a new design to fit everything in it is a challenge and might require extra time or expenses
Would be interested to know why there is such a huge fluctuation between the desktop and keyboard version while the electronics are the same except the keyboard. (True the P12DT has less knobs) Waited for long for the desktop and would have placed an order today at $999. Now reconsidering the up-gradable 8 voice keyboard instead.
P.S: Is the 8 voice desktop upgrade-able to 16 ?