All I wrote was:
"No offense, but your shipping price is a compelte RIP OFF! 100 freagging pounds for sending to the US? That's more than the "buy now" price of the box, and believe me the CD32 does NOT weight a ton!"
I'd take that offensively, but then I do business honestly (I have no idea whether this guy does), and I wouldn't take it particularly well if someone claimed that I was doing business dishonestly.
£100 for a 5kg item (let's say for argument) does seem excessive though. Perhaps he sent it via some expensive post system? Through normal post here (insurance comes with parcels worth up to £32 with the post office in the UK), I would guess it would cost half that, to the US, but I don't send much to the US, so I can't make any more than an approximate guess.