Look at that late night knife show. They sell knives like 50 knives for $90.00Buy from reputable manufacturers and reputable dealers, and you will have nothing to worry about. The same goes for cues. There are plenty of fake cues out there these days.
BTW, any knockoff for $12 is going to be crap. Fox Knives are made in Italy, Fox knockoffs are not. There are knockoffs and clones everywhere. I carry an Emerson CQC-8 everywhere, and it came from a reputable authorized Emerson dealer. I went to a local gun show a few months back and found a pretty good clone of a CQC-8, selling for $200+, and I walked away. There are cheap knockoffs and there are good knockoffs, but it's up to the consumer to know which is which and they decided if they want to buy a fake or not.
Knives have just become just cheap so anymore. I used to get the Buck clones from Pakistan. They cost me like $.90 and look like a $40.00 knife. I could sell them with my eyes closed. I must have sold a few thousand when I was on the road playing pool. Easy money.