I don't think it's worth it long term, they aren't cheap enough yet.
With all of the government subsidies and financing options available, they absolutely are. The initial cost is tough but over the course of owning a home they'll save you quite a bit. Say the installation costs 10 grand, and you save 100 a month, you'll pay them off in less than 10 years.
Part of the reason solar...and even wind, technology hasn't become more common in homes and communities is b/c coal lobbyists and legislators resistant to change. Even small solar and wind units could make a massive difference for individual homes and towns.
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CowboyStar88 Idk your particular situation, but you might want to also look into solar/wind hybrids. Even a small wind turbine - which doesn't even have to go on your roof - can make a big difference. In some areas, you can actually feed electricity back into the grid and they'll pay you for it, making monthly costs almost non-existent. I'd think LA would be a good place to look into that.