Many of the YouTube machinists live in a different world, particularly the two mentioned by NDIY – very large workshops, a lot of machines and neither of them in any way bashful about the money they spend on tools. Another thing that many are not reticent about is the funding they receive through Patreon, along with the tooling they receive as donations. I'm not suggesting anything untoward, but if the thread was inspired by Dale Derry I don't think he lives in the same world as most of us on this side of the pond.
I'm not convinced that machines are all that cheap, but then much of my other workshop tooling have been bought at car boot sales, and very occasionally I come across a bargain on eBay (though most eBay prices are inflated).
To give a few examples, most of my HSS lathe tools are from a car boot sale (a box of about a dozen for £3) and the vfd that runs my shaper was £27 on eBay. It's really only by looking out for bargains like this that I can afford to pay the normal retail prices on other things that I need. My tooling-to-machine ratio is therefore well below the 2:1 figure – probably nearer to 1:2.