Apple wants their new ASi (Apple Silicon) Macs to be faster, cooler and more energy efficient. Now that the newest 21.5" and 27" iMacs are all SSD storage only and no more mechanical drives, macOS Big Sur is going to be really snappy on any new Mac you buy, even the next MacBook 12" laptop. I support people that use older PCs with mechanical drives running Win10. When I open task manager I see the drive almost always maxed out to 100%. Everything is super slow to open. 150 to 200 processes running in task mgr. Slow as molasses.
They way Apple wants to grow the Mac market is to lure people currently using these clunky Win10 laggard PCs (hundreds of millions of users) to buy a new Mac. They may already own an iPhone but guess what ? All the new Big Sur icons and apps look just like they do on their iPhones. They'll even be able to run iOS apps natively on a new ASi Mac. Easy to see what the strategy with Big Sur is. Make everthing familiar and easy to learn for switchers. Then they'll never go back to Windows and suffer through that Windoze 10 angst again.
Here's the newest 27" Intel iMac. You could build a hackintosh with similar specs for less money but you don't get that amazing 5K display. I would value that at least at $500. The new ASi Macs are going to be an even better value and that is how they'll try to win back us hackers that have been building our own "Macs" for years. Just plug in the new iMac and it works, completely silent. You don't have to spend hours installing and configuring Catalina as you would on your hackintosh. Time is money as you know.
You can also still upgrade the RAM yourself to save more money on the total cost. Don't forget the new 1080p web cam built in for your video conferencing. How many 4K or 5K monitors have one of those built in ?
If the new rumored 24" 4K Retina iMac comes out later this year or early next and sells for around $1099 with much better than Intel performance and thermals would you buy one ? It's going to be really interesting to see how good the new ASi Macs turn out to be. Even then, I plan on keeping my Intel machines running macOS as long as is possible.