You want to see E30 madness, or perhaps insanity, just look at this:
BMW 3 Series Alpina | eBay
I see a few red flags in the pictures, and a bunch of inaccurate "facts" in the listing. If it sells anywhere near the asking price it will be a new high water mark for car with the performance of a E30 325is proving people are not buying them for the experience, but for some perceived value.
I'm happy the E30 is getting some love, but these prices are just stupid. When I can snag a nice E36 M3 for less than a good E30 325i something is wrong in the world.