Speak of the devil.
In the Faustian struggle for the soul of the audio industry, Mephistopheles mans the sales floor, giving the public what it wants, namely on-wall speakers. The beckoning demon's proposition is irresistible. If you're hanging a flat-panel display, why not hang speakers there, too? All other things being equal, on-walls are at a sonic disadvantage when it comes to soundstage depth. But, as any competent demon knows, all things are rarely equal. So, let's restate the proposition: If on-walls are what you want, why not buy the best-sounding ones you can find? If they sound good in the space and look good on the wall, you might find yourself handing the demon your credit card.