The Lenovo Thinkpad x230 with a price as low as $100 is a great computer if you can live with a model that’s five years old and a RAM upgrade will go a long way. Unlike the X240 that maxes out at 8GB you can install 16GB in the X230 for under $100. Add an SSD drive for another hundred and you’ve got a great maxed out i5 computer for as little as $300