So, my situation is that I right now have a 24" LED Cinema Display which I use with my 2009 MacBook Pro, but I'll buy a Mac Mini this year. I will use it - apart from the casual stuff - mainly for photo- and video-editing in Aperture and FCP X. So, first off: How big is the difference in quality? I'm very happy with the Cinema Display. Okay, text could be crisper (just 94 dpi), but the colors are really great and I've got no dead pixels. Is the new 27" panel really that much better? Second: Screen size. Does the three inch give me an actual advance in Aperture, Final Cut or web/iTunes/a bit of gaming? Of course I'd like the bigger size. And last: How much do you think could I get for my 24" LED Cinema Display? It's like new (one year old, but no scratch), got no single dead pixel and works perfectly. If I could get something like 450-500, it may be worth to upgrade to the Thunderbolt Display. What do you think - and what would you do?