It goes up from there, but it takes a while to become an investment better than alternatives. Inverters start failing after 10 years, too, and they're half the cost of a $400 setup, I believe.

  Ah! ça ira, ça ira, ça ira!
  Les aristocrates à la lanterne.
  Ah! ça ira, ça ira, ça ira!
  Les aristocrates on les pendra.
  Si on n’les pend pas
  On les rompra.
  Si on n’les rompt pas
  On les brûlera.

The specific stigma against physical violence (and not against other types, even for cumulatively worse actions) strikes me as very self-serving, an instance of "the law forbids both rich and poor to sleep under a bridge." It's increasingly the only remedy available to everyday people, and the mad acceleration of government capture by elites in the last decade is making murder and rioting inevitable, at least as long as ordinary people still feel they should have some power.

Any sort of violence is bad, singling out physical violence as uniquely bad gives misbehaving elites impunity.

There's a line to draw somewhere, but even the most ra-ra-individualist heavily depends on society, and has/should have obligations in turn.