I don't buy media from Rima, because I've caught them selling B grade Optodisc as A Grade before. I don't buy from Newegg because their purchasing practices rival Walmart in cruelty and disregard for market economics, and I don't buy from Meritline because they are stupid and have a complete disregard for their customers (and also sell pretty questionable media).
But I'm in Canada anyways, so the chances of me ordering from any of them would be pretty unlikely (but not unheard of).
Actually, I *DO* order from Rima sometimes... I just ordered 10 empty cake boxes from them

Punch Cards -> Paper Tape -> Tape Drive -> 8" Floppy Diskette -> 5 1/4" Floppy Diskette -> 3 1/2" "Flippy" Diskette -> CD-R -> DVD±R -> BD-R
The Progression of Computer Media