I remember years ago when there was all this controversy about plasma's going dull very quickly but it was total nonsense,my 1st Panasonic i bought in 2003 had a half life of approx 20000hrs which is still 10years of watching TV 6hrs a day,the latest ones have 100000hr half life.
It takes ages of tweaking to get plasma to how you like it,i have it set up perfectly for watching SKY but for Blu Ray,Gaming and DVDs i will just use THX setting as a lot of games and films are now THX certified.
I like they way every input can be custom tuned modern technology i love it
Although give me an old analogue LINN LP12 Turntable over any modern Digital format