We are going to install new windows in our home. We have two companies wanting us to go with their windows. Can you tell me if one window is better than the other? One window is The Infinity window from Burlingame Co.. The cost to do our home with those windows is about $21,000.00. The other window is Simonton Windows from Alcor Inc.. The cost of those windows is $8,200.00. We are wondering why The Infinity window is so much more.