THIS......so much this.
It doesn't matter how good a deal you are offering, even if it is way less than eBay, even if it includes good players who sell well, people will balk unless you are practically giving it away. I have a lot for sale on here that includes anywhere from $120-$160USD in eBay value, I'm asking $90 and not a sniff of interest. Every three hours is another post complaining about getting ripped off by a buyer on eBay, so if I can't sell my cards on here, bulk buyers aren't really interested in buying in bulk, there are no local shops who deal in singles, eBay is a crap shoot, and card shows are not an option, and any trade thread gets ignored, how can some of us do anything in this hobby besides spend money with no chance for return? It's a waste of time.