Rebuys you can immediately double your stack and add on at some point. Re entries you get a starting chip stack and when you bust you can pay the entry fee again and get the same starting stack. For example this weekend carbon has a $200+15 125k gtd tournament with a 10k starting stack. If you get knocked out then you can pay $200+15 to get another 10k chips. For those of you non Americans you might not know much about these tournaments since pokerstars does not use them to my knowledge. The game carbon is hosting this weekend you can re enter for the first four hours. With blinds going up every 15 minutes there will be a point where you can buy in and get less then 10 bbs. Many regs will fire 5+ bullets during the game (especially towards the end of the re entry stage) to try to basically buy a big stack. In a lot of cases live tournaments are starting to adapt to this format since they can rake in more money. The pros with big bankrolls and rich fish will act much like the regs on carbon do. It affects the casual players who try to satellite into these big games. Why would a casual player want to play these tournaments when they know that players that already have an edge can have many more chances then they do? Some would argue that wealthy fish make re entries valuable because they can add a lot of money to the pool. I actually think it decreases the edge a good player has over these wealthy fish since they can basically buy a stack and anybody can be dangerous with a large amount of chips. We need to do away with re entries, limit the amount of times people can re enter, or decrease the amount of time in a tournament that re entries can take place.