I don't use a ton of electricity so right now if i lease I save like $15 a month.. Not worth being tied into a 20 year lease. If I buy I think my payback is like 8 years which isn't bad just not worth it yet for me.

I'm betting on panel prices will continue to decrease in cost and become more efficient so the cost of buying them is more like 10k and not 25k where it is about now.