It is not economical and a report published a few months ago mentioned Adword sales in the US and UK have dropped. I think advertisers are starting to realize Google Adwords/Shopping can be quite a money pit with the primary benefit being you get a lot of drive by window shoppers. I have gotten many views yet no sales here but I have sold the same items elsewhere with decent results.
I would think even a modest campaign by Ebid to make their name more familiar to the general public would prove useful. I did an online search for online auctions and Ebid wasn't even near the top of the listing. A little image making would be useful.
A lot of people have been stung with data breeches and a name they have never seen before makes them leery to hit the Buy button.