This has been contemplated for many years and the price has gone almost nowhere but up. In the early to mid 2000's it was thought that most work would go to much cheaper India, and put highly compensated on shore workers out of jobs. It was tried to some extent, and failed. Then it was thought that lots of people would then fill the demand by going to university for CS and other related fields and saturate the market. That didn't happen either. It has been known for a long time that CS is one of the most valuable majors as far as salary and still the percentage of bachelor's degrees awarded has stayed between 2-4% Not saying that this is the only way to get into the field but it is the most traditional way and indicative of the supply coming in.

Consider that some of the most valuable companies in the world did not exist 25 years ago, and now they do making real non bubble money where their biggest assets are software developers. This isn't the dot-com boom. The attrition rates in CS programs are very high and even then not everyone that receives formal educations ends up being a decent developer. Factory workers made good wages in the mid 20th century due to companies making lots of money on an industrial boom. We now have a technological boom, and unlike factory work the barrier to entry is much higher. So I don't see why it can't continue. Sure the 3-400k salaries are high but they are at top firms that are selective and competing for a finite pool of talented workers in very expensive areas.