Quality, not quantity is the main focus of my collection. I'd rather have my small collection (a dozen?) of US, Japanese, and European pocketknives and multitools than my equally sized cheapo to the max collection. I know some cheapos are almost as good as the good ones, and I keep those as backups to my EDCs.
$6 isn't bad, but that's beat up old US made knife money. I've found dingy beat up knives that I was able to clean and sharpen into some of the best knives I own.
Tool choice is good, price is great. It's the quality that's the problem. All inexpensive Chinese made knives aren't that good. I've had numerous SAK copies I've got as gifts that had blades that seemed warped and were difficult to open and/or close. I've had accidents due to cheap tactical folders (which used to be my EDC in my early knife carrying years) that caused damage to clothing, or worse, skin because the lock had messed up. I once had a Colonial (now they're Chinese made, not a quality US made knife anymore!) assisted opener flick open in my pocket, cutting a hole all the way through a brand new pair of pants!
I'm sticking with my PST II, something I know won't let me down when I need it!