Well isn't this just a way for them to screw you out of money. If you get 3 weeks a year that company needs to hold 3 weeks of vacation pay for you in case you

Well isn't this just a way for them to screw you out of money. If you get 3 weeks a year that company needs to hold 3 weeks of vacation pay for you in case you get fired or quit. With a unlimited vacation policy this is probably not the case.