People other than yourself. I bought a new 13" 2020 MBP 2 weeks ago and am very happy with it and have no regrets buying one. Tim Cook and Apple both stated they will release and support new macOS versions for Intel machines for years to come. I read that as more than 3 years.
The problems I see with buying now (unless you needed a machine for working ASAP) are: 1. on ARM release you'd find even better deals for Intel models as they'd be 1 gen older. 2. ARM Macs may convince you, as unless you need Bootcamp you basically can do anything you can with an Intel Mac plus all the battery life among other benefits they'll bring. Buying now is just not having that option to ponderate.
So IMHO I'd strongly suggest to people just to wait 3 more months if they can, there's nothing to loose but a lot to win. Just my 2 cents