What does the $44.99–$69.99 GA range actually depend on?

General Admission pricing is listed on the tickets page as “Weekend or Daily Admission, $44.99-69.99,” and that spread reflects the difference between a single-day pass and a full-weekend pass rather than a Saturday-versus-Sunday split. The low end of the range is roughly what a one-day ticket costs, and the high end is the weekend rate.