Is buying a several year old 23" Apple Cinema HD Display worth the risk? I'm getting a MBA 13 in a couple days and need a good size (22"~24") external monitor to use with the MBA on a desk at work. I've been using MBP 17 AG screen and love its quality. I'd love to buy new version Cinema Display but the price is just too high. http://support.apple.com/kb/sp77 If it's too much of a risk buying this used model, what other monitors would you guys recommend using with MBA around $200 budget? I'll be looking at the monitor 8 hours a day so want a quality screen.