Eventually this pressure will go away though, as panels can only get so efficient. Future generations of panels are unlikely to make such big improvements. And

Eventually this pressure will go away though, as panels can only get so efficient. Future generations of panels are unlikely to make such big improvements. And because thus is an economic pressure/incentive, its really the opposite of what the original quote was suggesting. In 20 years we throw it all away because there has been amazing improvements doesn't gel well with their "this will last 60 years" statement.