The sideline seats are 2x as much but virtually sold out. Wildhack is right about demand for premium service/club seats but the (lazy) move that was made to try to use the basketball sideline seats for football club 44 was misguided at best.
They were told this by MANY former club44 pass holders (my family was one and knew several others with same opinion). The endzones premium seat schedule is very likley to change now that they have hard data to back up all the negative feedback they recieved when they were trying to sell them this summer.
Make no mistake, there is a sizable demand for tickets that are premium priced with club access, but none of the people who are wiling to pay those prices want to sit in the end zone (I know some on this board know people who like those seats, but that is an exception, not the rule)