Forgive me, Nighthorse for speaking too much poker jargon and presuming everyone knows what I'm talking about. I'm going to be speaking in tongues, next. So, look out.
In poker, or any gambling activity that provides a chance for the gambler to WIN (not slots, not craps, not roulette, etc.) but sports betting, horseraces, poker, and blackjack with counting, there is a term used which is "EXPECTED VALUE." We ask, what is the expected value of a situation. The expected value can be "positive" (+EV) or "negative" (-EV). Let's say you have situation where you have 60-40 the bet of it, then you have an EV of 20 percent (you are getting 20 percent back on the investment -- according to long run results). If you are pulling the slots, and the payout is 91 percent, you have a -EV of 9 percent on each dollar going in.
When I speak of +EV, I am talking about winning money. For me (and this is not meant to brag, only to verify a point) cash games are a +EV activity. Poker tournaments are a -EV activity, except for the very small fraction of the top players (Stu Ungar would certainly enjoy a +EV factor in no-limit hold'em for example).
So, when I speak of +EV or -EV it means the expected value of the bet/wager/situation.
Thanks for asking and letting me clairrify. Perhaps this will be of interest to other readers, as well.
-- Nolan Dalla