I'm pretty sure that being at the beach is really just universal marketing shorthand for "being somewhere that no one would ever expect you to even reply to emails from"
Much cheaper too, ridiculously enough.
I'd wager that most people are working towards a home base in the lands they're used to, then go on trips every now and then. Selling your metropolitan home base gets you the permanent beach lifestyle for sure, but permanently removing oneself from more densely populated areas is not for everyone.