KP, focus on sustainability. I believe that we are going to have a lot of manufacturers chasing every shade of "GREEN" there is and I am looking for a lot of warrenty issues in the future. We have looked at a lot of so-called "GREEN" items and after investigastion found them to be less superior than what is currently used. If you have to replace once a year as compared to once every five years, that is not "GREEN" or sustainable. Anyway, just be careful. Probably do not have to worry, most purchasing departments the $ rules and since most "GREEN" items are more-they probably will not look at them.