I am not much an expert on knowing about how to use firmware on hardware but I think firmware upgrades only applies to advanced users.
Only once in my life, I attempted an experiment to upgrade an obsolete hardware, a Toshiba DVD-writer using a firmware upgrade. It didn't go well as expected having writing CDs no longer working and enabled dual-layer DVD writing.
Besides media players, motherboards and the bios consoles, it appears that even some LCD or LED TVs, Blu-ray or DVD players and even all video game consoles today have firmware upgrades. Every time I mentioned the word firmware, my dad gets furious (he's afraid I might apply and ruin the hardware before he kicks me out of the house).
Question is for today's firmware to upgraded hardware, are they good or bad?
I wouldn't imagine having a radio, appliance or a digital grand piano accepting firmware upgrades in the future.