It's hard to make the right boots analogy (try it yourself if you think you can), but to speak of
fridges —
• The rich person's remodeller (or the developer of the house they buy) buys a commercial-kitchen prep fridge for the house's kitchen. This is a big, powerful, durable, repairable, no-frills, utilitarian fridge, that could be viewed as attractive or ugly depending on your opinion on brutalism. The rich person never sees this fridge. It's kept in the butler's pantry and only their private chef ever touches it.
• The rich person's interior designer then buys an elegant/classy half-sized in-wall glass-door fridge to live in the kitchen itself. This is intended for the rich person's household staff to keep constantly stocked with snacks and drinks for the rich person to grab. (Also, if the rich person thinks they want to cook one day, the staff will prep the exact ingredients needed in advance, keeping them in the butler's pantry until called for, but will then stage any "must stay cold" ingredients here.) This fridge is generally a piece of shit, made with huge markups by companies that make fancy-house furniture. But it sure is pretty! If (when) it fails, the staff can temporarily revert to just serving the role of that fridge, running to the butler's-pantry fridge or other cold-storage area (maybe a walk-in!) when the rich person wants something. (Also compare/contrast: in-wall wine cooler.)
• The rich person's household staff might respond to the rich person's request for more convenient access to snacks/drinks in certain areas of the house by buying + keeping stocked one or more minifridges. There'll certainly be one in the house's bar. (There's always a bar.) These are sturdy commercial-grade bricks, built by the same companies that build the ones that go into hotels; but these companies serve rich people just as often as they serve hotels, so they tend to have an up-market marque that makes the fridge look fancy while reusing the well-engineered core.