So the "sales pitch" is a little long... Would you rather be educated or not? Do you want to put a quality product into (probably) you biggest investment?? If you want long lasting quality, then buy penguin. If you want cheap price, get a sub contractor, it's as simple as that. You get what you pay for, especially in home improvement. I am a general contractor of 22 years and I have seen what goes into houses now-a-days. I sat through the pitch and paid top dollar. I know one thing, my home has great windows and I'll never spend another dime on them!!