If I remember correctly the -10 isn’t even that significantly longer or higher capacity then the -9 and has a slightly shorter range. The plan at the previous carrier was to use them as trans con machines and seasonal Hawaii flying. I don’t think they had the legs to go west without a tech stop from the PNW as we were already having to do that with the -9’s occasionally. Was a nice airplane and the LEAP’s sipped fuel but I wish we’d just order XLR’s and continue our airbus growth. I’ve lost faith in Boeing unfortunately.