Author: Window4U (IL) (---.dsl.spfdil.ameritech.net)
Don't assume that any company that makes their own window will give you the best price. Some of these companies can be professional sales organizations with hard sell type salesmen, who get top dollar for their products.
I am not personally familiar with either of these companies though, so do you homework and check them out. (Always a good idea in any situation)
Also, many companies salesmen will say they are factory reps with their own factory, and in reality are just feeding you a line.
So again, do your homework.