How much would it cost to enter a WSOP side event?

[Locohombre]

Is it affordable for the average Joe? Do certain games cost more to enter than others? Personally, I'm a big fan of NL hold'em and NL blind man's bluff.
I'm sure I'm not the only person who is at least a little curious. Only a fool or an extremely rich man would sign up for the main event, because the odds of winning anything in that get smaller and smaller every year, even for the pros.

Thanks