Well, I had to spend extra money in order to be able to play a game I already purchased because of Steam.
Just to make it a little more clear, here is what happend, not from my standpoint.
FFXIV was released, Steam and elsewhere. You could sign up for your trial on Steam and purchase from Square-Enix if you wanted to. Everyone was happy, Steam made money, Square-Enix made money and consumers could get their product however they chose.
FFXIV released an expansion. Steam said, "Look, we know everyone is happy right now, but we want more money. You either need to make every person who signed up for a free trial or purchased the initial game through us buy the expansion from us or those players can not get the expansion at all. Let us make more money or piss off everyone who bought the game from us."