burcot - 12:11 am on Nov 10, 2010 (gmt 0)
I think that ebay is a great place to sell, providing your margins are high, and/or - you are buying at very favourable terms.
The cost of selling something on ebay is at least 15% of the total sale value. Therefore, you must compare adwords and organic sales costs to draw any conclusion.
One thing I noticed with ebay is - a lot more people claim that their item never arrived. This means factoring recorded delivery costs in to the mix. If you sell larger products, then - next day signed for would be standard and this wouldn't be an issue.
Basically you are paying for people to see your product without any other marketing costs. If you can discount your merchandise, pay the 15% fee, absorb the higher than normal cost (in my experience) of missing parcels and still make a profit - it's a win win marketplace :)