I seem to have a knack for always coming in second best on eBay. No matter how high I bid, only one person in the world wants it more. I've had two times that someone has offered me a second chance scam, claiming the winner couldn't come up with the money. After contacting the origional seller & confirming it's a scam, I turned them into eBay.
I've bought quite a few amps on eBay & had good luck, the largest being my LP-12. UPS seems to be the weak link.
I bought my EB-4L from a dealer online, when the UPS man threw it on his shoulder to bring it to the door, it flew over his head & landed on it's headstock. My wife watched & told him she saw it happen, that there was a vintage guitar in the box, he could have cared less. Luckily, due to good packing on the venders part, it arived in one piece.