Where Have All of the Inventors Gone?

What happen to the Thomas Edisons, the Alexander Gram Bells, the Eli Whitneys of the modern era? We all know their names and what they invented, but what about the inventors of the products we use today? Who invented the computer, the DVD player, cell phone, or the internet (besides Al Gore)? Which inventors of the 20th century will 5th graders 100 years from now learn about?

I'm talking about the modern-day inventors here. Where have they gone? The ones slaving away in their basements with beakers, wire, and crazy contraptions, trying to discover the next best thing to make life easier, better for the rest of humanity?

I've puzzled over this question for the last couple of years and I've settled on three possible theories:

1. They work for corporations or well-funded organizations which take credit for their work. I know that Sony invented the Walkman, but I have no idea who within Sony came up with the idea.
2. They've turned into computer programmers. Significant software development is still possible without the support of a corporation or well-funded organization. Shawn Fanning (Napster) and Bram Cohen (Bittorrent) were capable of making products used by millions of people from the chair of their desk.
3. Modern society has lost the inventor spirit. Do we know who invented the light bulb because at the time of the invention to create such a life changing product elevated you to rockstar status? Now we have real rock stars to follow. Modern society is no longer interested in the personalities of inventors.

I'm personally going with theory 1 for now. Any other ideas?