<i>eBay</i> accepting Bitcoin (for fees) is different from eBay <i>sellers</i> accepting Bitcoin for merchandise.<p>Note that in most cases, eBay <i>requires</i> sellers to accept PayPal even though PayPal is otherwise independent now.
interestingly, steam just halted bitcoin payments. It seems the transaction fees and latency will need to be resolved (hopefully with the lightning network) before bitcoin is practical for moving reasonably small amounts of money.