At the time, ca.2 weeks ago, the mining did not pay itself. I did it in the hope the coin value will raise as it was new, today it already paid off. I paid for 4 hours more or less between $7-$10, 1.5GHs. It depends a lot if the cheaper rigs are available. You also  have to consider the value of the bitcoin. If you have some coins over just try it out and see if it works for you
For renting rigs, you can have a look here:
https://www.miningrigrentals.com