I am currently in the Netherlands, having relocated from Canada a few years ago, and likely to go back at an undetermined point in the future. Much of my equipment was dual voltage. The 115 V only items I brought over are on step-up transformers. Many of the new items I have acquired here are dual voltage, but a few are 220 V only - in those cases I confirmed with the manufacturers that they could convert them to 115 V. For most this is cost of shipping. In another case where there was a charge, the retailer committed to paying themselves when it occurs. Worst-case scenario is that the manufacturer goes out of business by the time I do this, but I think I only have this exposure in one case. In that case, I would end up using a step-down transformer when I move back.