Not the same use-case. Individually networked multi-zone speaker is different from an HTIB.Still not really sure how much value Sonos represents anymore.
After some showroom testing, my parents went with an LG soundbar (SN11RG) with a sub and two satellite speakers (with upwards-firing drivers). The cost of the LG setup nearly half of the cost of the equivalent Sonos setup, and in my own opinion, the sound and material quality wasn't really any different.
If you play from the TV to the speakers, then the Sonos can do that and more.
If you ONLY play from the TV to the speakers, then its correct you dont need the extra capabilities of the Sonos.