Seeing is Believing
Want visual proof of the difference AttiCat® insulation makes? Take a look at these houses. They are all next door to each other. The house with the snow on top is an AttiCat® house. Why does it have snow on the top? It's because the AttiCat® insulation is holding the heat inside the house. It can't escape through the roof and melt the snow (the garage does not have an attic portion and has no insulation).

Does AttiCat® insulation make a difference?
Now look at the two houses next door. They do not have AttiCat® insulation. Look at the roofs. Why is there no snow on top of the houses? It's because the heat (and the dollars!) are escaping through the roof and melting the snow.
You can almost see the money floating through the roofs on the non-AttiCat® houses.

Here is a photo of another AttiCat® house directly across the street.

Thanks to Steve Curtis for these photos.