User reviews: 'Time Spent' too vague

I love reading user reviews. I particularly like looking at the Time Spent pie chart.

The problem is that i feel this is too vague.

For instance, a game could take 10 hours to complete, but the person plays it again and again therefore giving it 100+ hours gameplay time.

Would it be possible to allow users to state the time it took them to complete the game first times around and then state how long they have been playing the game intotal since getting it.

okay, let me explain what i mean. For example:

I like to play RPGs. I don't really have that much free time, therefore i don't want to get a game that would take me like 100+ hours to complete (not including bonuses and extras). I would be happy with a game that takes 30 hours to complete but has lots of replayability. That is what i mean. Obviously it isn't really that important for all games like racing gamesand strategy games for example. Maybe this could be a feature added to platform games and RPGs etc.

Other people might have the opposite view: they want a game that takes 100+ hours to complete. They could look at the time spent chart and see that people have spent 100+hours on the game when really they have just been replaying it again and again which takes 10+ hours to complete each time thereby misleading the reader.