I wonder sometimes if I'd rip out all grid-tied components if I ever moved to a place with «normal» electricity, and install a renewable energy system. Sometimes I've felt as if I probably would. The idea of being «energy self-sufficient» really rocks my boat. But there simply and literally isn't enough lead to go around to let everybody have their own batteries. As the grid is already there, it's probably the most environmentally responsible alternative to energy storage around.
I even advise friends who have off-grid cabins not to worry about getting pv-panels, provided they have road access to their site. With a car, you can just buy a sealed lead battery and charge it at home. Spending thousands of dollars on panels and regulators makes no sense if you're only going to use it for some reading lights and to charge your phone on a weekend.
For my insanely inconveniently situated home, however, solar panels and a battery-based system makes all the sense in the world.
And thank goodness for that.