It is always good to see that other blogs, especially one as highly regarded as Treehugger, agree with your assessments. In a previous article titled, New AC Unit vs Window Tint, we determined that window tint is much more affordable an better ROI (return on investment) than both a replacement AC or replacement windows.
At more than $5k for a new central AC unit or over $250 per replacement window, window film easily becomes the most economical choice at