$25K is a bit high IMO, especially since there are approximately 20 of these out there.
I did contact the seller in regards to my prototype, which is, to date, the only known example of a non-translucent SE prototype (with an untexturized case, no port marks, no Apple logo, a Mac 128K/512K/Plus brightness knob, and a manufacture date of November 1986 written on a yellow label, not Apple's standard serial label system). Given that he worked in Apple R&D, I am hoping he will have the details we have all been waiting for about this machine. (I have had this prototype for nearly three years but as of today have no real leads about its origins or the number of surviving machines like it in the wild today).
If this translucent computer, of which many are known, is worth $25K, consider me a millionaire. However, I seriously doubt any Mac is really worth that much, and still feel the winner of the recent Apple I auction got robbed.
Those of you using inappropriate terms need to remember to keep things civil and suitable for all ages on this board.