Haha, what? Harry Potter and the Philosopher's stone cost us $25 when it released and I need 2 hours to read it. Super Smash Bros. Brawl. cost me $60 and I have already invested 600 hours into the game. I didn't feel ripped off by either one, but hours per dollar for a book are a bad example :)
Not when buying hardcover best sellers new, lol, but you can buy most books now a days for under 5 dollars. I can also make a case for retro or used gaming, but modern "AAA" gaming does not provide much bang for the buck. MMOs. which get criticized for monthly payment plans, actually aren't too bad as they are crazy time sinks.
Anyway, this is all completly off topic... I was jsut pointing out that a lot of "high quality" gmaes that people don't mind spending 60-70 dollars on don't have as much lasting apeal as platformers that cost less. That being the case, who is being robbed?