Extrapolating a few graphs I found via a quick google search, you don't get a 5x drop in costs due to cheaper solar panels. http://solarcellcentral.com/images/

Extrapolating a few graphs I found via a quick google search, you don't get a 5x drop in costs due to cheaper solar panels. http://solarcellcentral.com/images/module_prices.jpg http://solarcellcentral.com/images/module_prices.jpg http://www.data360.org/temp/dsg605_500_350.jpg http://www.data360.org/temp/dsg605_500_350.jpg http://costofsolar.com/management/uploads/2013/12/solar-pv-cost-trend.png http://costofsolar.com/management/uploads/2013/12/solar-pv-c...