I did a big upgrade recently, but still keeping the old monitor as a second screen.Also, if I understand it correctly :
6 bit panels = 256k colors
8 bit panels = 16 million colors
10 bit panels = 1 billion colors (pro usage only for the most part)
I went from U2412M, OK 1200p IPS panel too U2713H (1440p with 10 bit color) and the difference is astounding. Side by side with the same picture there are so many more colors at the 10bit panel, not that I had noticed anything wrong with the 24" panel before, but now I can't go back. And the 27" 1440p is great too, but I notice it's starting to tax my GPU (7970@1175/1500) in games.