I think from a practical sense you would need to figure out what appliances you really liked from the old world and just wire outlets for them. To make things simpler I think I would change the plugs to NEMA 6-15s and use US receptacles. If these are going to be used in the kitchen or bath you also need GFCI protection but that would most easily be provided with a single GFCI breaker feeding a sub panel that had your 240v circuits. The 50a aimed at spas might be the most cost effective. They are most commonly used in the 240v arena.
I also wonder about the plethora of LED and low voltage equipment. We have receptacles with the ubiquitous USB-a 5v outputs and that may solve some problems but I have wondered if having a 12/5v circuit or two would be advantageous to avoid so many "vampire" power supplies running 24/7. Between the chargers in the receptacles and all the wall warts I have plugged in I bet there are 25-30 here.
