eBay fees recently increased AGAIN and changed so that they (and their wholly owned Paypal) get a much larger piece of the transaction on more expensive items now. I know that most folks do not sell really expensive items, but for those that do ~ before April 1st (or so) the total eBay fees to sell a $2000 item was $83.40...it is NOW $140.00 to sell the SAME item!
Having said that, with my 14 years experience buying and selling on the interweb, with the exception of selling a used car, I have yet to find another selling or buying arena that provides more bang for the buck! Millions of prospective buyers at your fingertips still make them my choice for selling...and while I also buy there, I have to admit that I do not consider it to be the cheapest place for curmudgeons to buy "everything"...
As others have touted, Craigslist is another great place to buy and sell and with the fee free model that they use, it does present different challenges to selling and there are questions that any seller should ask themselves BEFORE listing anything for sale:
How do you want to be contacted? Using your personal email address may open you up to receiving spam from those that would just harvest your address...adding a phone number could do the same thing....so if you don't like spam email and phone solicitors, you might want to limit contact thru Craigslist.
Do you want people coming to your home? While the item that you have for sale is more than likely located there, do you want to invite strangers into your home? Of course, if the item is large (furniture, car) you may have little choice, but if possible, a public parking lot (of YOUR choice) nearby seems to be a safe alternative.
I actually just sold my 10 year old Toyota Sienna this week on Craigslist....did my research to determine value, put it on CL at 6:30 AM Monday...got my 1st email by 7 AM and had it sold by 5 PM the same day for my full asking price.
I also buy and sell daily on eBay and after the market downturn in 2008, have used the activity to help facilitate and sustain my ER.