I'm frustrated! Bought pixelated photos

[gold-dusted]

Hi you all out there,
I'm pretty frustrated today. I recently purchased some photos off eBay from a seller who is well-known for selling photos again and again. Well, I just thought maybe she got wiser with the years and is selling nice photos. I got my package today and was so pissed off to see that few of these photos are somewhat pixelated. It's not nice to look at them. Ok, I paid $ 3 for one photo but that's not what I'm angry about. I mean, WHY in the hell are still people out there who are selling pixelated photos that were downloaded anywhere from the net and then printed on photo paper? I think it's not nice to rip off fans this way. I bought a set of 15 photos from her....9 from the first auction, 6 are still to come. I don't mind when someone is selling Stevie photos again and again but I'm strictly against pixelated or downloaded photos printed on photo paper!
Anyone else out there who had bad experiences this way? Or is there a way to see if this is a pixelated photo or not BEFORE bidding on an auction?? I mean when someone is writing to a seller asking about the quality...I doubt that the seller would say it's pixelated....