Keeping up with the Joneses may have been the wrong phrase, but yes I do believe people indulge in novelty and experiences (this includes vacationing but is not limited to vacationing) due to social pressure and “FOMO” (fear of missing out). Social media is no doubt a driver of this. I think this is problem more of a problem amongst my generation than yours.??? you really think people go on vacation to keep up with the Joneses?? that's an interesting take.
A common example of keeping up with the Joneses is - your neighbor comes home with a Maserati, you get jealous and suddenly think you need that in your life (you is rhetorical here). Among my generation at least, it’s considered crass and to be so envious of “stuff.” However, indulging in experiences is viewed positively.
To that end, is it so inconceivable to think your neighbor comes home from a vacation, talks highly of it, posts beautiful pictures on social media… and then suddenly you feel like your family is deprived by not having a similar experience? I don’t think many of us are immune to the thought, at least.
Something to think about.