Ten Ton Hammer - What is a Free MMOG?
"The longer I look at this problem, the harder it gets to solve. Basically, a free game to me has always been one that costs nothing to download or install (ruling out Guild Wars) and nothing to access even end-game content (ruling out Wizard101). So long as a piece of equipment is not needed to successfully complete end-game content, I don’t consider lack of access to it without paying to mean much (leaving Dungeon Runners in the mix). I want readers to not have to spend a penny from beginning to the level cap to enjoy the games I recommend, but who am I to define the end of the game? See, I told you it was complicated!"

WarCry Network - RoleCraft- Home Is Where the RP Is.
"Above and beyond that base, housing opens the door for a huge amount of roleplaying events. On one end, they can be as grand as hosting large gatherings of friends, family, and guilds, only limited by the size of the house. On the other end, they can be a players' sanctuary, base of operations, and armory, among other things. Houses within an actual RP neighborhood may help facilitate the meeting of roleplayers who, wandering about the wild places of the game world, may never chance upon meeting each other."