BTW, collectively, we are 647-595.5 and our ROI is an excellent 10.53%.
(Pushes are excluded because they're stupid and meaningless non-bets.) (Unless the money you bet on a push prevented you from betting that extra game you wanted to bet on, that is.)
For those getting excited, remember that we get to play any number we see on the board. Putting actual money down at all the various shops we use is a PITA.
If you just dumped money in one book and tailed all the plays regardless of price, your ROI would prolly be close to zero. Which would still be beating the vig.