The hobby is in large part dying, but that is not the fault of Ebay.
Over the years Ebay has been great for the hobby. For the collector is has made Supercollecting possible with access to countless versions of every player. For the seller it provides opportunities to sell their cards for the best possible price to a mass audience. It has truly defined the value of cards whether we like it or not.
Please drop me a PM if you have any of the following for sale: Topps Baseball 1953-1967