I sold my copy in 2010. It was VG+ or EX. It went for $800.
That's pretty much the only sale, discounting the couple of eBay steals (including my copy).
The Discogs copy is only the 4th or 5th I know of.
The band only made a small number of copies. The mother of the organist was contacted in the 2000s, and she didn't even know her son had made a record.
For the record (pun totally intended), I've been tempted to grab that copy myself, especially since he's come down quite a bit in his price (started at almost $700).