Why did my 3-day weekend rental (intermediate rate) jump from $65 all in for the last couple of weeks to $85 all in this week and on? They were repriced at the same time last week.

Also, I was paying $59 all in all summer (as part of the AA 25th ann promo - I'm getting 4250+150 miles per rental). This jump in price just took this promo out of the "worth it" catagory.