There is a huge difference between the poker tournaments and the cash games. With the poker tournaments, you would be given only a certain amount of chips and once you are out of your chips, you would be eliminated from the table. However in cash games, you can certainly re-buy as often as you like. A lot of beginners do not seem to understand this difference and hence end up losing the tournaments. It would be ideal to watch a few before actually getting started into the competition. Personally I think Poker Online Tournaments are the most fun, easy to attend to easy pay-outs. With the glitz and the glamour attached to these tournaments, it would be lucrative for a lot of players to be a part of it.