The book collects 11 for every 10 while you pay 11 for 10. Following a bookie is useless, apples to oranges.
This is so true and that's why you see BR making comments about cleaning up when players aren't doing nearly as well.
Take today and without quibbling over different juice amounts or win/loss records (some games are losers or winners only if you got the exact line)
Today was basically 30-25 so if you look at $300 flat bet w/10% vig a player made $750 while BR makes $2400 that's the diff between postions.
If you take out the 2nd half plays you get 18-13 or $1110 Player $2040 BR. Good but not the kind of good twice the amount is.
There is no formula that a book isn't doing way better so when you read BR talking about making a killing remember that's with vig that you don't get so don't be surprised to find you can't match his success.