I had a 1911 - ONCE. Right out of the box it was failing to eject.
You're judging a design by one example, made by one factory.
It's like if the 350 Chevy was 100 years old, the patents had all run out, and there were 40 different companies making "350 Chevy" engines. The problem is that they're made in 3 different countries, to different design specifications, by personnel with different levels of training, to different price points, and with different end-goals in mind. Some might make 650 horsepower. Some might make only 235, but are made to run forever. Some will never start without serious work. None of that really comments on the viability of the design, though.
I'd say that if you buy a pistol it should shoot reliably out of the box. Even a 1911. If it doesn't then it might be a lemon (even Lexus and BMW put out a bad car once in a while), but if it's more common than that then you're looking at a manufacturer who either puts out a poor product, or has such poor quality control that they're a bad risk.
You can buy a good 1911 for $400 from a low-tier manufacturer with at least some level of consistency (I shot a new RIA through Gunsite's 250 course, without cleaning it, and without a malfunction that wasn't forced). You can spend a tiny bit more and get a quality piece from STI, Colt, S&W, Sig, Taurus, Ruger, or Springfield. Now, if you'll examine them you'll start to note that they are all straying from the original design to one degree or another, with various effects.
I should also point out that in the trials that selected the 1911, IIRC the prototype went through 6,000 rounds without a malfunction.
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Now, why a 1911? Because it feels good in hand, points well, has a very good trigger, conceals well, and is the kind of design that appeals to me more than a Glock. I've owned 5 Glocks, 3 Sigs, and a few 1911's. The 1911's are the only pistols remaining in my gun case (revolvers are a different discussion, and my father-in-law claims I have no taste anyway because I like S&W models, when a true connoisseur would accept nothing less than a Colt...)