I just plunked down $179 on Guerlain’s special-edition pressed Meteorites for the holiday season (though by the time this question goes live, I may have already reviewed it… as of creating this post, I hadn’t received it yet, so I’ll keep you posted!). The most I’ve spent in a single go was probably the Tom Ford Lips & Boys last year, which was maybe $1600? It was worth it, since it was very helpful to readers.
Diversity — there’s not enough of it, and more and more are noticing it and calling attention to the lack of diversity, asking for better representation (or just… representation). Customer loyalty, which seems to be diminishing, so it can be harder to retain customers over the long haul.
MAC and Estee Lauder. I think there are too many alternatives to mid-to-high-end, and more people shop online so the heavy physical store distribution network that MAC has may not be as advantageous as it used to be (plus, Sephora). I feel like the emergence of more of true luxury brands have made some reach higher (e.g. Tom Ford) while better access has created more niche, but high-end, brands like Hourglass.