If you have an old laptop sitting around that you can't bring yourself to destroy, Instructables user Damutsch has a guide for converting that laptop into a monitor. This build sets itself apart both in the fact that it has a handy stand and that it accepts inputs like HDMI and RCA.
With the exception of the controller board (which vary in price), everything you need is inexpensive. You'll need to get your hands dirty to make this work, but you'll have a fully functioning monitor. Head over to Instructables for the full guide to making it for yourself.
Turn a dead laptop into a monitor with Plexiglas stand [Instructables]