Kenny Rodgers said it best!!

1. You got to know when to hold 'em!
2. Know when to fold 'em!
3. Know when to walk away!
4. And know when to RUN!!
5. NEVER count your money when you're sittin at the table, there'll be time enough for countin when the dealin's done!

In any business venture, regardless if it is low risk, or high, understanding that the deal has the ability to change many times until it is closed, is paramount when you make your approach. The "Money" only matters once the checks are signed and the money is in the account. Don't spend what isn't there, but always maintain an awareness of the potential.