Biggest questions I ask myself while watching "Great American Light Fight"

My daughters have taken to this show and loooove watching the insane holiday light displays.
  1. What kind of disposable income do these people have???
  2. Is winning $50k even going to recoup the costs these people have shelled out for, by example, 250 light up reindeer?
  3. What would their December utility bill look like?
  4. Do they *charge* people for entrance to view their displays?
  5. I guess they each have a chance to say "why" but really, WHY???