It's like asking why should I like the American Flag or apple pie?
In my eyes, it's not about being the best gun, but owning a very viable part of history. No one says that because you buy a 1911, you have to use it to the exclusion of your Glock or Sig. That seems to be a big part of this thread. It's not like your other guns are going to get jealous!
Buy one. Shoot it. Customize it. Admire it. But if you still want to carry that hi-cap Glock for CCW when you leave home, be my guest. It's hard to argue with that. I love shooting S&W revolvers personally, and would always have one next to me when I sleep because I know it will go
bang if I need it. But if I were going to war with a whole street gang, I'd bring my SIG P229 or P220 with several hi-cap magazines. Right tool for the right job.
Many people here would argue with me and think the 1911 is the perfect carry weapon. I disagree, but I do think its one of the best overall guns ever made,
especially for its time. It makes a perfect target gun for me.
Someone else used a car analogy earlier. It seems to be a good choice as with computers too!
If you're a car buff, few cars are as customizable or tweakable as the old muscle cars of the late 60's and early 70's. Will a new BMW have more options, safety features, bells & whistles? Sure, that's their purpose. That's not the purpose of a Pontiac GTO.... or a 1911 for that matter. It's the "muscle car" pistol.
If you're only going to own one gun, keep the Glock. If you only need a self-defense gun, it serves the purpose, albeit blandly. But if you have a couple or more guns, it certainly doesn't hurt to have a 1911 as well, and shoot it too! It's a lot of fun.
If you had $100 million dollars, would you just buy 20 BMW's or Mercedes? Maybe at first, but I bet with all the money in the world, you'd start looking for a '57 Chevy to add to the collection.
ie. Having a collection of just factory made plastic guns can be quite boring.
-Robert
Edit:
PS. I only one 1911. I don't need any more, but then I collect S&W's. Some others collect 1911's. However, I
*will* say that I don't think my collection, or any pistol collection for that matter, would be complete without at least one 1911.