Why web users like mindless choices
Web designers and usability professionals have spent a lot of time over the years debating how many you can expect users to click to get what they want without getting too frustrated. Some sites even have design rules stating that it should never take more than a specified number of clicks (usually three) to get to any page in the site.
On the face of it, "number of clicks to get anywhere" seems like useful criteria. But over time we have come to think that what really counts is not the number of clicks it takes us to get to where we want (although there are limits), but rather how hard each click is - the amount of thought required, and the amount of uncertainty about whether we are making the right choices.