I was on the Northwestern site and you can buy season tickets from $99 for youth, $152 for End Zone Reserved, $196 Corner Reserved, and $262 for reserved sidline seats.
for S&G I went in and ordered 2 best available and could have got 2 on the 35 yard line in the lower section row 75, section 127.
FYI for those wanting to purchase season tix, and donating other games to local charities, like alot of fans did for the Wake Forest game.