Yeah, I don't even award points for attendance -- ya gotta earn them via performance.
To add on to this...
People's opinions vary widely and things can get quite contentious when a point system determines who has a seat at a League Championship Tournament. Some believe attendance (and early arrival) should count for something, others believe it should be all about performance. Personally, I believe if somebody can show up 5 less times than me (and late every tournament) and still get more points than me, that person belongs in the Championship before I do. Others just have a hard time seeing people who didn't play much get a freeroll at everybody's contributions to the Championship prize pool.
Many, many, many years ago, in the infancy of his points system, I thought
@BGinGA came up with a nice solution to this. (I'm sure he's not the only one who has done this, but he's the only one who has done it for leagues in which I've played.) Points are awarded based on performance (and the number of players in each tournament). There are no points for showing up and looking pretty. If, at the end of the season, you have enough points to qualify for the Championship Tournament, you have a seat in the Championship Tournament; HOWEVER, if you didn't play in at least half the tournaments, you do not get a complete freeroll. Instead, you have to pay a fee based on how many tournaments you missed. This is probably better explained with an example.
To make the example easy, let's say it's a 10-tournament season and $10 of every entry fee goes to the Championship Tournament prize pool. Therefore, every player in the Championship Tournament needs to have contributed at least $50 to the prize pool via their entry fees for individual tournaments ($50 = $10 * 1/2 of 10 tournaments). If a player plays in three tournaments (wins two of them) and has enough points to qualify, that player is in; however, instead of it being a freeroll for that player, the player will be assessed a $20 entry fee since he/she only contributed $30 to the prize pool via entry fees.
I think this is a great solution. Everybody is contributing their fair share (or more) to the Championship Prize Pool so that people didn't get their feeling hurt, but it's still based solely on performance.