A friend picked up a PC Engine for me on a trip to Japan, and earlier in the day I was going to get it from him I found a Japanese-to-US power converter in a Goodwill, still in the package, for $3.99. So my only import console that I ever use has a converter as a totally random quirk of good luck.

I have a British Playstation I picked up in a thrift, but the games I bought for it in the same shop aren't exclusives or anything, so I've never bothered modding the console's power supply to play it. And that way I don't have to wrestle with a SCART plug either.