Originally Posted by
entropy
I'm pretty sure most airlines appreciate additional revenue, even if its not top dollar, unless the flights you are on are overbooked.
I've got a big goose egg in terms of future scheduled flights on UA this year.
Another former flyer assisting in UA's PRASM improvement!
Again, if you maintain your habits (whatever they are), and another airline treats you better and gets you where you need to go efficiently enough, then switching to that airline is a 'no-brainer'.