Quoted from wxforecaster:
From the horses mouth, do you side with the opinion that the LEDs are preferred on older games w/ limited brightness levels as opposed to newer games w/ substantially more brightness levels and more full animation art?
Most people probably wouldn't notice a difference in LED characteristics between older and newer games unless it was pointed out. Even then, it's unlikely the number of brightness levels output by the game would be a deciding factor in choosing LED or LCD. Customers who start with one display type tend to stick with it across all their supported games.