That's not exactly a fair comment, pinkprimp - klaret simply used an industry benchmark as a way to assess value for money, but in no way suggested that we're only paying for the ingredients.
I had the same dish and the same reaction - in comparison to other restaurants with similar quality of food and dining experience, Cava is more costly. And as much as we liked the food at Cava, my wife and I have indeed voted with our feet.
I would take no pleasure in seeing Cava close, though - ideally I'd like to go back if the value for money equation changed.
The question is not whether it's our loss or the restaurant's - the beauty of sites like chowhound is that owners don't have to wonder why people aren't coming back, they can see our feedback and (if they so choose) adjust accordingly.