Last night while digging through my CD collection to make sure I hadn't already got some of the discs I was intending to buy today, I found my copy of the Hybrid Theory EP. This was a 1000 pressing, later repressed with another 2K or so, CD only EP by the band that later went on to become Linkin Park; and I got it for £4.50 on ebid (failed Irish auction site).
Now, I knew it was now worth a fair bit - it was already worth a lot more than £4.50 when I bought it, but...
$115 with nearly 3 days left.
Whats even better is that the CD and box are in perfect condition on mine - I listened to the CD once, and ripped it to my HDD, so its been in a CD drive only twice beyond what the original owner did with it.
However, I think people like Digital Mike almost certainly have far more scarily expensive stuff in their collection?