goN' LPs at $10, I can buy for $0.18

I just wonder who would buy the piles of LPs listed in the classified that are common stuff. I can buy (and HAVE) many of these $10 wonders. I paid around $0.23 or $0.18 each for these LPs.
I mean stuff like Hall & Oats, Cars...(I got them all at $0.18 each)
I have like 2,000 LPs I paid under a quarter each for, as mint as can be! I COULD start listing them, trying to make a killing (as some seem to be trying to do), but I would be listing them at $1.00 and STILL feel I was robbing the blind.
I can understand the rarer MFSL etc, but the classifieds ads should have a charge for being placed, even $0.50, to cut the flood of junk filling the LP classified!!!