Well - I think Btuser is probably right about the next "great" advancement in PV. Maybe (hopefully) it doesn't take the next 10 years, but even if it does, that is really a blink of an eye. Most hippies will be gone or too old by then, we just don't make hippies at the same rate as we used to. My point is that we subsidize energy. Many, many facets of it. If we are gonna do it, lets do it in OUR best interests.