This post is just some thought I have about creating a store on eBay. Since the last changes on eBay make including the increase on sales commission charging by ebay, I can see what people mean when they say that ebay is not the best place to open a store and its less and less atractive for sellers in the last two years. So if we want to check new options how to make money on ebay it will not be on items with low profit.
It must be a product with higher marginal profit even if the quantities we can sell are limited. I think that the ebay potential is still out there but we can use it in another way such as driving related traffic to our own sites from our ebay store and build client ale.
One more way is eBay's affiliated program. Very easy to earn money this way with no merchandise. The only problem is you must know PPC or SEO.