It's also nice to support European manufacturing but I wouldn't actually pay for that.
More worried about the Southwest/Alaska fleet than anything cross-atlantic.
But I'm sure it must be on someone's backlog
One should ask how much I fly before one would make an assumption. I can count on a single hand how many times I have had a plane change at the last minute.
There's likely to be some variability from airline to airline and whether or not you're flying out of a big hub with lots of equipment present; as with most things, YMMV. If you're terrified of flying on a 737-MAX to the point of wanting a refund if one gets swapped in, though... take the train.
So maybe your experience is not the norm and one could be self reflective as I am?
Example terms: https://www.united.com/en/us/fly/contract-of-carriage.html#r...
> Times shown on tickets, timetables, published schedules or elsewhere, and aircraft type and similar details reflected on tickets or UA’s schedule are not guaranteed and form no part of this contract. UA may substitute alternate carriers or aircraft, delay or cancel flights, and alter or omit stopping places or connections shown on the ticket at any time.
That's a lot of lawyer-speak for "Our core business model has absolutely no guarantees and we can change it at any time for any reason and if our failure to serve our customers causes us to go bankrupt you rubes get to pay for it in the form of government bail-outs"