I think ebay represents a world price. Understand, in some areas these things are just not available. Someone who has no access to something they want might be willing to pay a price higher than you might. Sometimes I find things cheap, sometimes I pay the price its worth on ebay.

There is no price guide. If someone is willing to pay more than you, that's the value, not your bid!

Sales are driven by lots of factors, some of them emotional, for whatever reason.

I've at times paid too much, but in that moment, I was happy to get the item.

Ebay is the ultimate price guide.