There are plenty of laptops that are great desktop replacements. I bought a Lenovo about 3 years back that had SLI. It was awesome. I'm going to buy one for my son when he graduates boot camp that has the option for an external GPU. Building your own PC isn't the only way to get performance and usability.Lot to be said for taking your laptop to school / work and coming home and connecting it to an external monitor and playing your favorite games.