Your QB is always going to demand a higher price tag especially if you consider him QBOTF. We're already footing the bill for his 15 million dollar franchise tag for one year. If we can sign him to a 30 million garaunteed over the long haul (6-years) that is still a very good investment considering it'll be ~12 million less then what Stafford will be making and Stafford doesn't even have a single NFL game of exp yet.