There’s a great post over at IGN titled: “Why Core Gamers Hate Free-to-Play.”
A sample:
There’s a purity in playing a paid game that’s lost in most freemium alternatives. Video games are all about escapism. There’s a certain indecency to thoughts of real-world money intruding into the experience. I believe this is why many gamers prefer a $60 Borderlands 2 experience over a free alternative. Many of us will pay a higher up-front cost to protect the integrity of the play experience.
There really is something off-putting about elements of the real world economy leaking into a game world.