Originally posted by: Yo_Ma-Ma
Reasons why people might want to sell on ebay.. to get rid of junk in your house you might otherwise throw out & make money on it as a plus. Low start-up cost, free mailing material from post office. Make more money from ebay buyers in a bidding frenzy than selling @ garage sale or classified ad. Easy to do part-time, even at odd hours of the night. Gives you something to talk about with other people, surprising how many folks like to talk about ebay. If you use paypal and have buyers put money in there then creates a little slush fund you from which can do some fun shopping

Entertaining to start an auction at a low price and watch it take off.
Reasons why people might not want to sell on ebay... deal with dolts, dirtbags/NPBs, incompetent fools/slow-paying bidders, scam artists etc. on a fairly regular basis. Having to always pack up and ship items you've sold, not fun especially for the larger items. Dealing with the unhappy customer. Somewhat time-consuming, may not be good for someone with an extremely busy schedule.