I know several people that started with home theater with surround sound and their interest in audio lead them to two channel analog setups for music. It's not that uncommon these days. It used to be that you couldn't get surround sound and all that back in the day. You had stereo and things were really big. Now, you get surround and tiny speakers for nothing so most people end up starting with that. The ones that enjoy the process, well, they end up going to higher quality component systems, bigger stuff, bigger cabinets, and reduced numbers of channels involved... crazy!
I have both; I'm not going to say that home theater is better as 2 channel. But I much prefer 2 channel for music rather than using my home theater setup for that. And that's if I'm using speakers. I still very much enjoy an intimate 2 channel experience with good headphones.
Very best,