For example, if you must buy one of those old 60W (actual power draw!) incandescent light bulbs, my local hardware store will sell you one, labelled "For industrial use", for only a little more than it cost ten years ago.
However the superstore you're actually going to buy lamps in doesn't carry them any more, it just doesn't make economic sense. They have several different 8-10W LED lamps producing similar light output, often trading purchase cost versus efficiency (if you use more LEDs and balance them carefully they'll run longer and use less power to make the same light, but that costs money) but the only incandescents the big stores carry are specialist products for appliances like ovens.
In my country it's hard to buy bathroom fittings (e.g. a shower or bath taps) that don't have thermostatic behaviour†. In applications where vulnerable people are expected to use them, thermostatic limits are mandatory, so if you're a plumbing trade outlet the products that don't have this are sometimes useless to your customers, "Nah, I need TMVs or it won't pass inspection" and then it makes sense, except perhaps for some budget lines, to only carry the version which is thermostatic.
† A bimetallic thermostatic design is used, the "hot" supply is narrowed and eventually shuts altogether as water output temperature rises, so even though domestic hot water must be stored at e.g. 60°C the thermostatic valve can ensure the user never gets water above a set maximum temperature and thus they can't scald themselves or others (e.g. babies or old people)
For the same reasons they get wasted on open container laws and whatnot. It's a handy weapon to wield in neighborhoods you don't like.