In a way, yes it is definitely convenient, practical, quite innovative, etc. But in an other a little less.
I would better read a book (0$) to discover new things or at least buy something useful, like a solar panel, instead of a Dash Wand.
Wow. What a waste. What's next? The Amazon Dream Hub that lets you buy things while you're dreaming about it while sleeping?
Or you know...you just write it down on a piece of paper or your phone, take it with you to the store and buy it.
Modern technology = doing the same stuff you've always done, only in a cooler way.