So many assumptions. You really sound snobby and rather defensive.
Breguet is no entry level brand, so the prices aren't entry level either. Most people can't afford these watches, maintenance is expensive as well. Just to get in you need 10k euro/12k usd (even if they give you a discount). The XX etc. is a nice watch but it's big, so for example, I wouldn't be able to wear it.
A lot of other pieces they make are rather classic in style and design, so it's obvious which crowd they are catering to. I really like the blue 5177 but I wish it didn't have a date window, I wish the lugs were better shaped (too long/straight/stiff looking) and that it was perhaps 36mm instead of 38mm.
It's like complaining ''why is no one buying Vacheron Constantin'' perhaps because +98 percent of their watches start at 20.000 euro. The cheapest VC is the fiftysix at 12.3k euro. All the others start at 20k euro.
So go figure why people are buying an Omega which only costs them 5k.
https://www.vacheron-constantin.com/en/watches/man.html#filters=under-20000&tab=0