I just visited the site for the first time since the thumnails were introduced. It looks fabulous - and loaded up for me in 15 seconds flat (on DSL). I think the added visual element is both useful and attractive, and even a somewhat longer wait would be well worth the chance to get a sense of the book through it's cover (lots of dynamic graphics on those dust jackets - why not show them off?) Like the man said, a good site gets better.