Late registration

This is beneficial for poker rooms. Otherwise they wouldn't do this.

I think so that people don't complain about them being too short and so that people are allowed to be able to join not beimg restricted to 30 Minutes while being busy doing something else.

2 hours is too much. The average is 3 times already.

I also prefer to join into the tournaments in the middle of registration but that may change depending on how many are left and how fast the blinds go up.
A lot of times I may wait til the very end and usually make the cash do to the field have busted close to the prizes.