when you start paying house payments, car payments, medical/house/car insurance, utils (electricity, water, trash, gas, etc), cell phone payments, taxes (federal, state, sales, etc), gas, food, credit card bills, student loan payments, etc it all adds up
Its not that people dont have 600-700 dollars laying around, its that it would be stupid for them to purchase that on a PS3. Life is fucking hard and most people dont just have 700-800 (with a few games) to 'throw away' like that