I understand how the system works. My beef is with the equipment that United has chosen to use on routes that are not very small markets. Not only are they uncomfortable, they contribute to system delays due to the higher number of slots that they have to use to move the same number of people as larger aircraft. Without exception the crews have been fantastic and do a great job with limited resources, but they can only do so much. We were delayed again on my current trip due to maintenance. I’m actually shocked the 50 seaters have held up as well as they have. They have been through countless cycles. The reliability is going down, demand is increasing, and it’s just time to replace the bulk of those planes with newer and larger aircraft.