Anyone not snapping this card up at that price is a lunatic.
Amibay is helpful for many, many people. My personal experiences 6 years ago when I was getting back into the Amiga scene, I won't be back. I was accused of being a "noob ebay spammer", a "tire kicker", and called all sorts of names when I simply asked some polite questions. I'm not much for the "Old Boys Club", I guess. I went there with cash hanging out of a clenched fist, looking for something to buy and only got harassed for my efforts. Not everyone on AmiBay treats people like that. I bought a PPC/040 A1200 with a BVision for $500 off eBay and had the last laugh. I bought my first Amiga off the shelf when it was new, I won't deal with being treated like a scrub, so the place is off my shopping list.
It did not work for me, but it does work for many people. Don't paint the entire AmiBay experience with the same brush.
I believe in open disclosure if people have had issues somewhere, but let's not go into some tirade that there's AmiBay goons hiding outside your house with flaming bags of feces. It's a website like any other, if their terms and the way they operate is fine by you, I'm sure they will suit your needs. Many other ways to find hardware, and often cheaper.