My husband just booked a flight for next week on Frontier! There are 3 types of seats to choose - $6, $15 and $20. Most of the $6 seats remaining to prepurchase are middle seats or seats in the back of the plane near the bathroom, none of which he wants and he is hoping to get assigned a better seat at check in. Is this a good strategy? He doesn't really care much where he sits, but would prefer to be in a window or aisle and not next to a bathroom.