You really think these games are made to last 2 weeks to save your money? No the whole reason for these things is because they know people get addicted to this for months and go over paying 50 dollars for it, much over. And besides, Dawn of Fantasy will be awesome and I'll be playing it for a long time, MUCH more than 2 weeks. But with monthly pay I wouldn't be able to afford that and then everybody will be sad.
Also Paypal is actually pretty nice. My dad has been using it for years and it always helps me out in everything.