This is pretty wrong. I know it's pretty trollish, but I feel compelled to respond.
computers that can last longer and be cheaper
Trend is actually to computers that are cheaper and more disposable. Once upon a time more companies were trying to release more reliable machines, but the costs were high - Enter Dell, eMachines, Acer and Gateway (the latter three now one and the same), and their business models of inexpensive PC's that aren't necessarily solid broke the market entirely. Computers are becoming disposable, much in the same way mobile phones are.
Used computer market is now becoming HUGE....because no one can afford to retail prices.
Retail prices on PC's have been plummeting for a long time now, and the used computer market is inflating due to the above point: Computers are becoming disposable, and there are even cases where people will toss a computer because of something like a spyware or virus infection.
iPAD subscriptions have taken a complete nose dive of late as people realize how useless and costly the things are
While I never understood the point behind the iPad, its impact on the market in general is undeniable, with Android tablets mimicking its design appearing left and right. Many emerging and future hybrid designs are coming out as iPad-style tablets proper, with a fully-equipped base station featuring a keyboard, mouse, ethernet/display ports, and so on. I know that our provincial government has become very interested in developments by Toshiba in this regard, and may be procuring them to replace laptops in the future.
I want to address the most glaring part last:
too late once open source is OUT into peoples hands its too late.
YOU can't then take it away.
Yeah you can. If, say, Apple decided they wanted to lock down their devices, they could first-off modify their EFI implementation to disable the loading of unsigned (by Apple) software as an operating system. That in itself would disable flavours of Linux from loading, and they could go further still by modifying their operating system to support installation of applications only via their App Store. The beautiful thing is that newer Apple products, both hardware and software, can use a different encryption key for their EFI-OS lockout. Or, they could utilize technology like this:
There exists a real-world potential for such a thing to exist - Microsoft has for a long time been on-again off-again working on something formerly called Palladium, now called Next-Generation Secure Computing Base, which is an implementation of the concept of trusted computing. At the time when this was announced, many thought of this as perhaps being the death of Linux - One major use for this kind of technology is for DRM purposes, wherein only an approved application can access certain data, which could feasibly include the entire system. The hardware required for this kind of thing has been around for a while, and many machines since the AM2/LGA-775 sockets have Trusted Platform Module chips included. One of the more famous applications for this is with Bitlocker.