The new storage bins on the 737 are great for storage, but if you have to step out of the aisle while boarding to let a flight attendant pass by, you end up hitting your head. You also cannot stand up at the aisle seat while deplaning and open up the storage bin. You actually have to be in the aisle to open the storage bin. In the past if the aisle was filled up, I could stand up at my aisle seat and open the storage bin to remove my carry-on. Now I have to wait until I can actually move into the aisle to open the bin.

Those AA Airbus A321's with 10 first class & 20 business class seats look mighty fine.

http://www.youtube.com/watch?v=20zshmYxhLw