From "The Airport Lounge Scene: What You Get and How to Get In" (in the NYT).
Here's the top-rated comment:
The average business class or airline club lounge is far from tranquil. They are almost always packed, noisy and messy. Often you have to wait for a seat. The food is generally both sparse and unappealing. You must pay for drinks beyond the most basic swill. Over the past 10-15 years the clubs and lounges have spiraled downward, just like the airlines that provide them.