Alright. Let's say a song is $1, a movie is $10 and a book is $10, and a song takes 3 minutes, a movie 200 minutes, and a book is 700 minutes (350 pages at 2 minutes a page). So the per minute cost is $.30, $.50, $.15. The average is (30+50+15/3) $.31. Not really sure how to factor games in there. $60 for 20 hours - that's $.05 a minute, which pulls the average way down.

I think a person will max out at 40 hours per week. That's 2400 minutes, which at $.30 is $80. The average is probably going to be closer to 10-20 hours - $20-40 per week.

So we're talking $80-240 a month by this calculation.