Desktops are more user serviceable, whereas laptops have the advantage of mobility. It really comes down to your most crucial personal needs. Take some time to determine your needs. If it's just a ordinary media computer you're after, a basic system will suffice. If you have a specific purpose (virtualization, CAD/CAM, gaming, video editing, etc.), you'll need a system that can easily be upgraded to meet the requirements for those tasks, which typically only desktops can achieve. Again, it's up to you and your personal requirements.