I became hooked just recently with a pair of decent head phones.
It started accidentally with some Bose QuietComfort. I bought them to focus better at work. I thought: Wow - these sound really nice! Started googling them and someone on head-fi said they were crap compared to e.g. AKG K701 - so I bought a pair of those in an impulse. And than it startet: Amplifier, Beyerdynymic DT990, Hifiman HE-400i, AKG K340 - very interesting hobby 😊