Nonsense. I've just installed PV in the north of England and my payback is in the order of five years, even with the gloom of our seasons.
Large swathes of the US have hours of uninterrupted sunshine all year round. With a battery, a residential owner may never need to pay an electricity bill for the lifetime of the system.
You'll have to be a bit more specific - is it export restrictions, or connection limits or what?
Even if you go for something that isn't grid tied then you're still breaking even within years if you spec it right.
Obviously if you've got grid electricity that's almost too cheap to meter than I wouldn't bother but for most of the western world the economics to not install solar simply aren't there.
Large swathes of the US have hours of uninterrupted sunshine all year round. With a battery, a residential owner may never need to pay an electricity bill for the lifetime of the system.