This misses a common reason to avoid wheels: upcharge on carriers that charge for carry-ons. If you are carrying a tiny bag/purse and it has wheels, it is at a

This misses a common reason to avoid wheels: upcharge on carriers that charge for carry-ons. If you are carrying a tiny bag/purse and it has wheels, it is at a minimum considered a carry-on, so you'll have to pay for it, and sometimes check it. Every time I take a cheap flight I hear some poor flight attendant explaining how having wheels puts it in a specific price class.