Does spatial audio make the Sonos Era 300 better than two Era 100s?

The Era 300 from Sonos is the company's first music speaker focused on playing tracks in spatial audio, a format that promises to envelop the listener from all directions. At $450, it's an expensive but impressive speaker. But Sonos has another new speaker out, the $250 Era 100. That speaker doesn't play back spatial audio, but that might not matter when you can get two Era 100s for just a little more cash than the Era 300.