There's also solar-powered emergency radio-telephones that you see along some highways.
There WILL be a market for solar power in places where it's not workable to string a power line
"SOme people have these little lights that they plant along paths. "
Just about everyone has those, these days. I bought some when they were really expensive. Now, you can get a whole box of the things for the price I paid for one.
Remote power is perfect for solar. There are solar panels all over the place where the roads and powerlines don't go. They're powering all sorts of stuff.