It's Not About the Garage
Well, I don't have a garage. But more importantly, it's not the garage that made those companies great. Unbridled passion, extreme work ethic, and follow through; that's what makes a great product.
A garage itself can't build the first computer, or bestow upon the band rehearsing behind its door some magical musicality. It's the people in the garage, their dedication and drive that make the difference.