Is My Money REALLY working for me?

[Derek G.]

Hello everyone!!!!
I currently have 3 occupied rental properties. 2 of them are paid in full. I am renting them all out and enjoying the benefits. However, I have a question for you seasoned renters out there.
Would I make more money if I took a cashout refi and utilized it for more properties? ... or would I be better off using my existing income from my current properties to purchase real estate slowly? 
Probably a stupid question (Yes there is such a thing), but I figured I'd ask :)