I think the thing is, its too early in the game to be offering a lifetime sub, like yea its a nice idea and a great hook, and i guess they figure if the game explodes its only a small profit loss, the timing just seems awkward.

I guess if you've played the beta and its really got you hooked, and you've been able to see the potential and know how this game will shape out i guess you can easily make the informed choice. If however your like most its too big of an investment so early on, its only 13ish months of subscription but if you get bored after one, its money down the drain, and the fact its only a limited time offer doesnt make that choice any easier.