The good news is: there are more companies making 1911 clones than any other gun on the market. All have their advantages and disadvantages. Most of the expense comes from precision tolerances and enhancements. Built-in enhancements include flat top slides, adjustable sights, reshaped extractor ports, spring loaded extractors, relieved mag wells and a host of other "machined" features. The add-on enhancements include extended slide locks, triggers, and thumb safeties; skeleton hammers, beavertail grip safeties, grips, and more.
Once you have a decent "platform" most of the enhancements can be added later. Of course some things get pricy because machining may be required such as a ramped barrel or custom sights. A match grade barrel and bushing and some trigger work will make most guns into tack drivers.
I have owned just about every brand of 1911. With exception of my Les Baer Custom, I keep going back to Colt. Yes, Kimbers, S&W, and others are quite nice but the good old Colts are real hard to beat.
I would highly recommend a Colt 1911 or a 1991. From there, you can build -up to a combat, bullseye gun, or a carry piece.