@mapman I used the analogy to make a point. Obviously it's silly to think that a DAC is the same thing as a car. The analogy was never meant to be taken literally :)
Secondly, I don't think anyone here is advising to make a decision purely on the basis of price or brand name alone. The point is that for higher end gear to shine, the rest of your chain has to be good enough to let the gear show what it's capable of, and there must be synergy amongst the components.
BTW, I agree with you about plasma TV. My old Panasonic plasma (over 15 years old now) can still hold its own against newer LED TVs. The black background (resulting in better contrast) provided by my plasma tv is still superior.