Here's the latest real cassette rarity on eBay!

I was browsing eBay, and ran into this.. now, I don't know if I'll bid or not.. there's still 8days left..
One thing is for sure though, and that's that you don't often see these for sale.. this was how Sgt. Pepper's first came out, and there's not very many of them.
I expect this to reach upwards of $100:

Here's the link, if you want to see for yourself, or perhaps bid...