I assume you are asking as a method of MS. (Just my guess...)
Look, it's a business like any other... if you are GOOD at it and put in the time and energy to do it right, you can have a nice little side business where you can easily rack up all of your MS that you need to do and also make a little profit while you are at it.
But if you are expecting it to be easy and require little to no attention or effort, than you should invest in sungames. You also can put that on a CC and get points!