Perusing the virtual shelves on AMZN's top 100 just now. Saw David Baldacci's The Hit ranked 38th @ $12.74. Kept going and saw the same book as 77th FREE. But, it was listed as "FREE PREVIEW - First 8 chapters". Interesting idea...but then again, can't you sample books for Free?? First 20% or so? Anyone ever try this?