Bad Beat Jackpot..are they making money off this?

[Sixth_Rule]

does party make, lose or brake even doing this?
so do they
1. give away the 50'000 starting money and add all rakes to the jackpot

2. put just enough Bad Beat rake aside to be able to pay the $50'000 the next jackpot

3. take a percentage of the bad beat jackpot that more then covers the $50'000 starting value and thus make a little extra rake on these hands



i just saw that around 130 tables are bad beat tables
lets say around 100 of those actually contribute to the rake. at 60 hands an hour thats 6000
does the jackpot raise that much in an hour?

my real question is...... is there an +EV from playing them??