Perfect World has micro transactions but the game itself was free, as are all the updates. Most of the stuff for sale is cosmetic although there are some buffs for cash. The differences would be Perfect World started with stuff for cash while Destiny did not. And there is a cool in-game auction house where you can bid or buy just about anything for game money. You can also sell items, even mats in personal player shops. Those two things let players buy buffs, paint and gear without spending real world money. I bought a horse and dog in Elder Scrolls. If it helps the game great, If not I still enjoy running them. If I could buy customizable stuff for Destiny I would probably do so. I am not excited for emotes but ship add ons would be nice.