I really dont understand why DayZ is best seller

I really dont understand why DayZ is best seller

PC Gaming: Complain of shoddy ports - then goes and pays for access to games still in Alpha and Beta stages, which normally cost more than shoddy ports.

??? DayZ was popular before it was made into a standalone game, popular enough to have a full game try to rip it off (Infestation: Survivor Stories, aka War Z). You buy into a game with early access knowing it will be buggy. If a person knows they want the game, whether or not early access cost more or less doesn't matter because you are supporting the developers of the game. Like kickstarter only you actually have the ball already rolling.

I really haven't encountered any bad bugs in DayZ yet. Aside from the lack of zombies and loot, the game runs great for me.

No idea how Skyrim is still selling. It's not even a game, just a modder's paradise.