People buy 1911s for a lot of reasons. When a person is new to 1911s, they have a lot of questions and very little understanding of what they, themselves really want in a pistol. The 1911 is a pistol that demands that you shoot it and find out for yourself what features are important to you. For some folks, the "Kimber" type package of beavertails, swoopy sights, holy triggers and slick finishes is extremely important. These people will likely not be happy with a Colt, at least not yet. There are a lot of brands and variations for them to chose from, but I usually recommend a Springfield Mil-Spec and some range time. Most decline and go buy a Kimber. That's OK, many shoot that Kimber and are happy never knowing anything else. A few will someday move to a Colt, but most never feel the need. Kimber is a good gun, as are Springfields and the SW1911.
Then you run into a person who says "I want a Colt 45. Which one should I get?" or "Are they still made?" This person will not be satisfied with anything but a Colt. Even if they try to get in cheap with a Springfield Mil-Spec, they will buy a Colt within six months. Nothing else will satisfy them. These are the people I steer towards a Colt. You can almost sense it when you first talk to them, they care more about substance than fashion. Some people call it brand blindness, but to many of us it is more than that. It is something you feel, something that emanates from that pistol when you pick it up, something that travels through your bones, something a Colt gives you that no other 1911 does. Either you feel it, or you don't. These are the people who will buy a Colt and build it into what they want. I am one of them. I cannot explain why another brand does not do the same thing. All I know is that it does.