I'm fully aware who Bega is. I dont see it written anywhere in their warranty info that says that they will provide matching replacement parts for 20 years. I hope you dont think that they're going to build products today, and then keep them around for 20 years just in case they need them.
Legislation banned the incandescent bulb. So, if you needed to replace a 100w GE soft white with a "matched" product today, GE couldn't provide it. (Although you might find some NOS somewhere, that's only temporary). If you wanted to replace a mercury ballast today, Advance couldn't provide it. If you wanted to replace an older T8 lamp today, you couldn't get a "matched" replacement, same for induction lights....and on and on and on....
Maybe you haven't seen the new ones, then. I linked them previously.
If you think they're ugly, then that's your opinion and you're entitled to it, but their performance is far superior to a 6" nail up can and trim. You can get as many lumens out of a 3" hole as you'd get from a BR30 in a 6" can. 90CRI, IC rated, wet location and lifetime warranty.