you guys suck at craigslist
when selling, you've got to overprice the heck out of your items - this keeps the riff-raff from even bothering and will give you some wiggle room to cut a deal with someone who will actually have real money
don't bother even trying to negotiate with people who email you with with a lowball offer, not worth the time and they'll more likely than not show up with less money than the price you agreed on
it's nice when someone sees the ad you posted for 40% more than you hope to get out of whatever it was and emails you that they'll take it sight unseen and when is a good time to pick it up
i just sold a CRT monitor for $200 (listed on craigslist for $200) that i bought 4 years ago for $140 and a spinning bike for $350 (listed on craigslist for $350) that i paid $250 for