1) Shrinking compared to what? The moment you want to do any serious work or gaming, you need a desktop (or a laptop, but a real PC in any case).

2) Ok, so there is expensive workstation available. It is a step forward I guess.

3) Call me when it is available and I can buy it in any normal computer shop.

Look, I hate the x86 architectur with a passion, having grown up with MS-DOS and the horrors of real mode. But the truth is that if I want to buy a computer right now, today, it is either a x86 PC or an Apple, and I have zero interest in Apple's closed ecosystem, so a PC it is.