This guy's getting shredded-- and unfairly so-- here, and Porsche is the wrong metaphor (he's more like a high-end supercomputer; almost no one has any use for more than an iPad these days). However, he's dead right about one thing, and it will affect everyone here who is serious about programming.

As you get better, the jobs available to you get better, but the job searches get a lot harder.

PhD programs exacerbate the problem. You get better fast (faster than people do on typical early-20s grunt work) and by 27, you're already at that level of skill that starts to complicate job searches. (Again, jobs available are better; but 3-5 month searches are common.) In addition, you haven't learned the judgment-of-character skills that most people pick up in entry-level hell; whereas most people, by the time they get good enough that it starts to actually cost them job prospects, have learned those skills.