Depending on what kind of game you have — it’s hard to say which model is better. Is free-to-play better? Are subscriptions better? It just really depends, and it’s hard to say which one is better.
FFXIV Producer Naoki Yoshida said: “One of the promises we originally stated was that we would release the game with a subscription model,” Yoshida explained. “Players will be able to play it 24 hours a day, seven days a week, 365 days in the year if they paid a subscription fee. So to regain the trust of our players we must of course fulfill this promise. Right now we believe that to be more important than any kind of business decision.”