On the other hand, I would think the more important question to contemplate is why anyone would want/need anything other than a 1911.
WWJMBD?
Remember, a 1911 is a type of pistol, so price and quality vary widely between manufacturer and model.
If you are looking for an entry level 1911 with a basic GI configuration, I recommend the Rock Island Armory fullsize and the Springfield GI (both around $400-$500, and about $100 cheaper used).
Many people find the GI sights too small to use, so the next step up is the Springfield Mil-Spec, for about $650.
Once you get North of those base models, then the field is wide open.
A lot of people like Kimber, but IMHO they are more show than go. The original Series 1 Kimbers are actually very high quality pistols if you can find them on the used market. What they are selling new today isn't even close to being worth the price they are charging.
My personal preference if you wanted something higher quality than the Springfield (or wanted to Buy American) is to get a Colt.