Do you have any advice as we shop for a device?

Make sure you know what you are buying. Older models are usually steeply discounted when newer models arrive. This can be a good way to save some money, but sometimes you are buying a device that will be obsolete sooner. You might get 2 years of use out of the device instead of 3. Of course, that could still be a good deal. Be careful when you see a very low price. Make sure you are getting what you think you are getting.