Reviews usually aren't very good anyway, since they do reflect only the one person and their opinion -- and that one person is generally someone who is usually not you, for obvious reasons. Then again, how many other ways are you supposed to know about games, other than looking up footage on YouTube or trying it in the store, both of which have a lot of pratfalls associated with them, especially at release for the former.
In general, buying games is kind of a difficult place.
Also the numbers need to be seriously defocused, or maybe removed from reviews altogether. I think they demotivate people from reading the actual review.