Before jumping into purchasing an ATM machine be sure to do your home work. Once you purchase one you still need an ATM company to process the transactions (similar to credit card processing). This article will discuss how to pick an ATM company to best service your ATM processing needs and how to make sure you select the right ATM machine.If you see any ATM machines for sale that are less than $1,000 used be very wary. Once you purchase an ATM Machine you still need ATM processing.