Meanwhile at google:
A: "We could save hundreds of millions in hardware resources if we disabled instant search."
B: "But we might lose money if we don't show as many ads. OH WAIT..."
The guy did a search and realized that the suggestion menu overlaps on the top of the page, where the ads are displayed.
He then tried to click the ad and he couldn't because the ad results changed the moment he moved his cursor away from the search bar.
It took them 7 years to realize their mistake!