I am looking for a new primary monitor. I currently have the 24" Cinema Display hooked up with my Mac Pro using a mini display extension cable. The display has issues especially when connected with the extension. I get random black outs and flickers. I also have an older 20" aluminum cinema display as my secondary monitor and it's awesome. Never given me any problems. I've given up on the 24" Cinema display and I started looking on eBay and craigslist for a nice 23" aluminum cinema display. I like the matte screen better anyway. I'd like to find one that was well taken care of and complete, even the original box. Even so, it would be at least 4 years old now. I think they stopped making them in late 2008. So do you think I could get a few more years out of a 23" cinema display? How long can they be expected to last? Any known issues with them?