I was an Apple fan in 1980, when I bought my Apple-][+, and it created an industry around the open bus and BIOS ROMs.
IBM copied that plan with the (unfortunately crippled) 8088 PC, and another industry blossomed around it.
Then Apple forgot that model with the Mac, making a closed box, IBM and MS followed with secret hacks into the OS, and yet another industry has grown up around Open Source, both hardware and software.
The meta-lesson? Niches will be filled!