Its so true that Amiga prices in general have gone through the roof Just the other day an A3000T went for almost $1000US
Ebay/Paypal seems to be the safe choice because if you use your credit card to make the purchase via paypal the credit card company will also go to bat for you and will prosicute if they can.
I had to contact my credit card company about a simular issue over a non received item and the seller after being contacted by them sent me the item that I had not received.