My BIL is thinking of buying a used 50" Kuro Elite for $500. Well loved, driven only on Sundays (used in a dedicated HT, only 700 hrs use, supposedly) Don't know the year, assuming its the last model. 2009.Is that a good price? How does a five year old Kuro Elite, previously the best consumer TV, compare five years later to current Panasonic plasmas?He prefers plasma to LCD, and has one of each at home.