I definitely keep an eye out for them, when I first got a PHEV I was slightly obsessed with trying to find out any free electricity but usually to no avail. I'm not saying the facility doesn't exist outright, it just rarely seems to be in a place that's convenient for me. Showing me a map of a 100 mile spread doesn't really do anything to define chargers that might be suitable for any given location. There could be countless within the area I'd cover in a week's holiday but if they're all 5 miles or so from the place I'm actually spending the day then what use is it to me?
I knows it's not likes it's always the case with petrol stations either but a few miles diversion for a 5 minute exercise isn't a massive deal compared to having to stop for best part of an hour somewhere you don't really want to be, particularly on holiday when you want to be making the most of your time.
90%+ of the time I would be fine in an EV, I could possibly even upgrade my 6kw charger at home to a fast charger if I went full EV, there are free issue chargers at the office too and I'm unlikely to ever cover a distance in a single day that would need me to stop en route, unless temperatures plummeted. However the times when it would inconvenience me are the times I would least like to be inconvenienced and that's why I wouldn't yet make the change, unless as mentioned before the 2nd car in our household was able to step in on those occasions and take the EV out of the long distance/intense usage debate.