I'm with you on that. Customization is important to me (one of the main reasons I use Android), and I'm eager to see how this turns out. I really appreciated the custom styling options added to Google Now Launcher and this feels like the next step.
Not necessarily. Depending on the country, stores can set their return policy when it comes to non-defective items. I know several major retailers that refuse returns on headphones if they have been opened due to hygiene issues. If the headphones are defective or unopened, then they will accept returns. OP returning a working toothbrush may fall under the same scenario.
There are many different models/configurations of ThinkPads so there is no real answer to your question unfortunately.
Purely anecdotal, but I've been using a T450s for over five years and I don't see myself really upgrading anytime soon. If I do upgrade, chances are I'd get another ThinkPad. I like how little they can cost and how they don't conflict with Linux.
We at Heritage can attest the prototype is working, as we've played a couple of rounds of Mortal Kombat on it using a Super Famicom cartridge.
That gave me a good laugh :). This collaboration reminds me of the Panasonic Q. Nintendo's collaboration with Panasonic that was a hybrid version of the GameCube with a DVD player: https://en.m.wikipedia.org/wiki/Panasonic_Q