I don't believe this to be true. I think it is more the case that many who sell on eBay would never get into a gallery anyway. The cream rises no matter where it is sold.
Originally Posted by TheFlyingCamera
You would be amazed at how many "legitimate" galleries and dealers sell on eBay under assumed names, etc. I know several personally and they find money from eBay sales spends just as good as any. Several very well known and represented photographers sell their work there too. Granted, there is a stigma that can be attached to eBay sales, but I think this is rapidly disappearing as people realize it can be a very good source of cash flow with extremely little overhead when compared to more traditional means. I think it is a valuable tool to have in the bag. Those that want to denigrate it can, the others can laugh all the way to the bank.