Exactly what my company did with all the old workstation. We are a software development department and a few years back the main issues with laptops have been the slow hard drives. Now they are fast enough (of course we still have our build servers) and all the desktops have been replaced with laptops and docking stations connected to large TFT displays.
Great for working, because you can set up dual-view, do the coding on the large TFT and have your documentation, specification, whatever (/. ;)) on the laptop screen.
And I think the gambling argument doesn't hold for most of the games, either. But I only play occassionally and have maybe different requirements and don't play games like Crysis.