The new Play 1 comes with Alexa built in.
It really depends on your end goal, if you're only going to have one Sonos in the room then get the Play 3 - if you're thinking of expanding the set up over time then you can get a play 1 and see what you think, then add more speakers later (as you can have all the speakers connected)
You wont regret getting any of the Sonos speakers, they're awe
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