Business laptops have the following advantages over consumer laptops: - they're much more reliable - better support - a lot fewer problems with drivers and other incompatibilities - they are designed for work, which means you will have fewer problems with things like virtualization - generally speaking, the keyboard and the track-pad will be better
And the good thing is that some of the disadvantages of business laptops like size and bulkiness have also disappeared. You can now find business ultra-books that look good and work well.