Your anecdote is only the surface level. People may be spending more at shops because they expect inflation will keep going up and the things they need will just get more expensive. And they don’t expect they can save for larger purchases like housing or renovations so they’re buying lower level items while they can afford them. These sort of shallow effects might look like a prospering economy on the outside but they can mask an uglier core.
I say yes. It’s one of my favorite genres (if you can call it one) and definitely includes loop-based plots like Groundhog Day and Primer. But I also enjoy the Terminator Series and Back to the Future and others that don’t really loop that way. I suspect most fans are similar. It’s hard to imagine enjoying one premise but not the other.
Also: https://xkcd.com/657/