ebay will keep chugging along because there is so many people that don't know exactly what they are paying, or even consider S&H.
There are vast multitude of people that shop at walmart, secure in the knowledge that everything they buy is as cheap as they can get it anywhere. Consumer Reports says walmart is middle of the road on things like electronics and appliances, but those devotees are sure they are shopping smart.
The big buzz was ebay is so cheap. Now vast hoards of people will shop ebay, secure they are shopping smart, even though they never compare what they are paying to other sources. There's too many people that just use credits card to buy everything and never know the total, their spouse writes a check for, or even see the bill.
There will always be enough stupid people to keep ebay chugging along, without the people that really
are getting bargains.