I've been involved in all three methods and other than LoL i've hated with a passion any F2P games because they somehow just feel cheap and underdeveloped, but that might be my choice in games not the method itself.
B2P works well for games where there is a singleplayer and multiplayer aspect to the game but I've not seen a one where it works for MMO's, again maybe just my game choice and not the method.
P2P I like, it ties you into the game and gives you that drive to play, to get as much as you can for that months subscription and it's always in your mind that you are still 'playing/paying' the game even when you are not online, so you come back to make sure you get your moneys worth. Like i was doing in WoW for so many years, WoW became stale and boring but I was paying for it and had the time invested where i couldn't stop, only stopped because my account was hacked and got a temp ban and i've just never started up again.
But yeah, I'm all onboard with the pay model you've mentioned and would be happy to subscribe to this game, as it seems like it's going to be the next big Building/Space/Exploring... ect ect (It really covers a lot of genres doesn't it) game and i can't wait to play it.
I prefer a P2P system mostly due to it requiring players to have some investment in the game--thereby allowing some kind of limitation on behaviors. There will be those who will cry from F2P and announce the doom and gloom of not going that way, but my experience is that F2P games have an inordinate amount of people behaving badly strictly to be be people behaving badly.
The only issue will be that many will automatically say that P2P is also P2W....which I think is a twist on the F2P argument.
I like the EVE structure, and I like their economy model, so that kind of gives you an idea of where I am coming from.
