It's not nearly as simple as 0 = freezing 100 = boiling. If you've never had to use it (which the only time I have is like, when sitcoms make a joke about it) it's definitely not something I've ever had to remember. Especially when I know -40 feels the same, it make the above 0 scale look very odd from the outside.
There's nothing I choose to watch or listen to that I would feel the need to speed up playback. If I have to speed it up to be bearable, I'll just turn it off.
500 bucks is actually not only good, but it would be a stupidly cheap price.