Something to consider in this age where 'failed' MMOs [SWTOR/TERA/now
Rift] are changing to cash shop F2P transactions, as well as Zynga Inc./other companies that put out Facebook games where you can pay to become better than your friends.
There are certain games [League of Legends] that have somewhat of a
good business model that puts free players on the same level as those
who pay, and it pulls off somewhat well.
However, who knows what or how to solve the historically bad
stereotypical reputation of the type of players that plague F2P games.