I've noticed the last several flights I've been on, most of the later boarding passengers have had to gate check bags (at no charge). It's standard EVERYTHING with wheels gets gate checked on the RJs out of FWA, but I'm talking on the bigger planes (757/A320). The last two flights I have checked a bag which I never, ever used to do. As people are trying to drag everything under the sun on the plane to avoid charges the space fills up quick and I don't want to be "That guy" standing in the aisle searching for space...