I mean if the worst thing possible is you buy something that pays itself back approximately over its lifetime, you made a decent choice. Most luxuries do not do this.
So for the cost of prepaying for the power over 10 years-ish you get the ability to run somewhat independently of the grid, or in total battery backup mode and consume something like 40 kWh every day? That's pretty awesome living if I say so myself
Well, I have a backup generator already, so that's not the biggest motivator. If it would work well with the generator, and provide immediate power until the batteries were exhausted etc.., then that's a different animal, but we discussed why this is hard with the 200A limitation the GW's have.
I suppose it's a good bet that PG&E is only going to get more rapacious on prices given bankruptcy, paying off victims, and the state forcing people to move to electric heat instead of gas, but that may not mean the spread increases and may not offset the loss of capacity over 10 years.