Surprised that no one's mentioned it yet but there's also the issue of product localisation.
OK, so even though product manuals and safety information sheets are famous for being in written in at least 15 different languages, you've got also consider the following issues:
With electricals, you're going to end up opening the box to find the wrong plug on the end of a mains cable, or worse, a whole charger with the wrong plug moulded onto it. So you've then got the expense of a new cable, adapter or charger to add to the total cost of the appliance.
And then, when you finally plug it in you can stand back and admire your shiny new machine with its fascia and buttons all inscribed with a language you don't speak.
And should it break under warranty, you've to ungodly shipping costs if you have to send it back to the retailer...