Hi everyone, I had a question regarding the tournament structure at "PokerStars" versus "PartyPoker." I thought that after a certain level in the tournament there begins an ante fee regardless if your in the hand or not. Thats how its done in Casinos and WSOP. PokerStars seems to follow the same pattern but "PartyPoker" does not take an ante in tournaments. Why is that?
[Sorry if this has been answered before.]
Also, doesn't this offer some type of advantage by not having an ante, or does it not matter?

Thanks!