Someone explain to me this!

[Aquattro]

I'm at a point where I usually sell frags/stuff very very cheap, if I even take money at all. And 95% of people are great. Yes, some have chosen a hobby they can't really afford, and i feel bad for them, but some are just cheap. Selling a guy frags at $5, he offers me 3.75 in change. Really?? I gave away a MH setup, saw it posted for sale a week later. Same guy that felt he didn't need to buy test kits, since his buddies and LFS had them. Makes me sad.
Reefing is expensive. It has required spending. If you can't/won't part with the money, it may be the wrong hobby at this time.