Entirely true - it's just that if the C6 is too expensive, it could go down the route of the VW Phaeton. Citroen's list prices are a little ambitious (not just with the C6 actually), but this thread is an example of how you should never pay that price for a Citroen.
Again, entirely true...but then again, you could say that a brick wall has more character than some of their cars!