Originally Posted by jameskwon
...ALSO if there is 22" carryon model, since no one checks weight for carryon becomes useless...
True only if one never travels outside North America.
(BTW, before the spelling police pounce: it's a roll-aboard, not "rollerboard." It's not any kind of a board. It's a suitcase that you can roll aboard so you don't have to carry it.)