3M Crystaline Window film vs Double Pane Windows

I've had both, film on an '04 that I even added a second pane of plexiglas to all the fixed glass areas, then dual pane on an '11. Much prefer the dual pane for the extra insulation. Miss them now but my wife's health dictated an in stock purchase.

For "bumpy's" comments the extra weight isn't an issue, around 50 lbs. and no one drives a fiver so reflections aren't a problem.