I agree with you. Personally I hate it. I was trying to figure out the specs of this laptop because my sister asked me if she should buy it. I had to do a lot of clicking.

But this site got my sister excited about buying the laptop. The stupid animations worked. And I am sure if this was presented to her as a simple html page with a white background and some text it just would not have had the same effect.

Like it or not, most websites are just ads. Interactive billboards. They are not there to present data to you in the best way possible.