This price would have sounded great a few years ago, but you can get whole house solar installs for ~$4k, enough to replace your power. We got a 4.6 kw system installed on our house for less than $4k out of pocket. Check out SolarCity or any solar company that offers a lease to own program.
For something that loses value over time, I would argue that it makes a good deal of sense to compare the price of leasing to the price of owning outright.
Yes I used them... The contract is transferrable. I have fully paid off the panels already so I suspect that it will add a lot of value to our house if we decided to sell.
$1,000 seems much more affordable to me than $4,000. Four times more affordable.
Also this looks to be aiming for a different market than people that really need a whole house solar system or people who don't really need it but can afford the $4,000 out-of-pocket. Which actually is a bigger market, because most people don't have $4,000 handy and most people don't have a real immediate need for whole-house solar, but there are a LOT of people that want to decrease their energy bill or just REALLY want to "be green". The lower the price goes, the more people will buy solar panels, just based on the concept of having solar panels and being more sustainable.