Lenovo is the standard in Laptop computers in the opinion of many professionals. Lenovo has long set the standard in terms of quality, reliability and support. IBM sold it's PC computer business to Lenovo a Chinese company. There are many models of IBM and now Lenovo laptops built over the years. Along with other cheap refirbished laptops models, from other major manufacturers, there are many sources for repair, replacement parts, and upgrades such as memory available. A used Lenovo laptop is a good investment.