I'm pretty sure I'm decided on the Joovy Caboose for our 9 month old and my 4 year old for day outings to the zoo or theme park (unless someone has a better recommendation) so my older one can sit for a few min when her legs get tired of walking, but not committing to a full double stroller. But I can't decide on if it's worth the extra $$$ for the ultralight. Does anyone have any experience with these and can give me some insight?