I bought my 30" ACD's in 2008, 2009 and 2011. Two have died. My last one is starting to wig out. The new 5k LG monitor is brighter and sharper, but it's only about 3/4 the physical screen space. Funny how some things go backwards and other things go forwards.

My 3 monitors have been used for 4 generations of Macs, though. Definitely agree that monitors live longer than the underlying computer.

Well, not the best argument for monitor's staying power.

Compared to 2006's ACD, new monitors have bigger brightness, better saturation, far wider color gamut, better viewing angles, AND double+ the resolution.