[Benholio]

Here's a number for low buy-in NL players.

$0.50/$1 NL = about 7 cents a hand. ~228,500 hands to qualify.

$0.25/$0.50 NL = about 4.8 cents a hand. ~333,000 hands to qualify.

These were both taken from full ring games played on Party and Pokerroom, about 17k hands each.