> It is really annoying, however, when people retrofit these things into old houses and you get something like a downstairs bathroom outlet that has no apparent GFCI, but then it trips, and you have to hunt around the house for the GFCI outlet only to find it in a bedroom on the upper floor.
They do have GFCI breakers. I'm not sure how they compare in cost, but one disadvantage is that you can't easily test them (who ever bothers going to their breaker box to test the GFCI occasionally?), nor can you easily reset them when they do trip.
Maybe easiest to just have GFI on the breakers?