All of the airlines have lost their collective minds. I'm a big guy, and fly first just for the comfort of myself, and those around me. We paid ~$2600 at the early part of the year for our tickets. I wanted to add three days to the front end of the trip, and contacted American to make the change. With the change fee ($400, fully expected -- and a charge I was willing to pay) the additional cost was another $2100. Essentially, the prices are almost double what they were when I booked. Their logic was that my return flight (the one I'm already booked on and not changing) was crowded, so the fee was higher.

I won't be adding any days to the trip this year!