It only seems like that because you want a copy of the lp! you just slept on it plain and simple, the same thing that happens to everybody at some point in terms of forgetting or putting off buying something, then, oh no! all copies are gone. This happened to me with the 1st 2 Sherm Sticks lps, which are now selling for 50-100E. It'sjust supply and demand that makes the prices rise on Discogs.
If you are prepared to wait it will probably be repressed eventually, I nearly paid a high price for the Tanki Tanki 12", but recently it was repressed with extra track for normal price
Why not email Veronica Vasicka and let her know the situation that it's still in demand and copies are selling for high prices, there were represses of all the "Tapes" lps and the first Oppenheimer analysis 12".
50E is too much to pay tho, the pressing is not amazing, but still okay.