From Cnet:
The Dash button isn't nearly as necessary as it used to be. Today, plenty more appliances connect to the internet. Amazon also integrated its Dash Replenishment Service into hundreds of products from major manufacturers like Whirlpool and Samsung worldwide. DRS lets appliances automatically reorder the stuff they need, like a printer purchasing new ink. No need to even push a button.
Plus, Amazon created virtual Dash buttons on its website and developed voice shopping through its Alexa voice assistant, which have both grown in popularity, Amazon says.