9. Lenovo ThinkCentre M72
Price: $579.00, list
One of two Lenovo desktops to appear on this best-seller list is the ThinkCentre M72, running on a 2.8-GHz Intel i3 Core Processor. Lenovo's ThinkCentre line boasts lightweight, energy-saving towers that are still capable of high productivity. The device comes with Lenovo Solution Center, a hardware diagnostic tool for high manageability.