It's rare to find a cheap Linux laptop at a major online laptop store. Most new laptops come with a Windows-based operating system. There just isn't a large enough demand for laptop computers with Linux-based operating systems so laptop stores generally don't sell them. Linux is however an interesting alternative to the standard Windows-based operating system that the majority of people are familiar with.
The Linux operating system is an open source project supported and developed by a community of users. Additions and improvements are made by individuals and teams from all over the world. Linux-based operating systems are free and in general offer fast performance, good stability, and reliable security. 95% of viruses, spyware, and malware are designed to attack the Windows operating system making Linux an excellent alternative in terms of internet security.