Yes, you're quite correct re price. I thought I was looking at Canadian pricing, but was in fact looking at American. For about $300 Canadian, you can get an entry level machine that can do small boards, sourced through AliExpress. The machine used in the video I linked costs around $900 euros, so roughly $1,000 USD.
Now, having said all that, I should also hasten to mention that I have no personal, first hand experience with CNC PCB manufacture. I have a lot of experience with 3D printers, which is similar. The difference would be the need to move a relatively heavy tool - a Dremel or similar - very precisely. 3D printers also must be precise, but the weight on the Z axis is far less. It's sorta like the difference between a ballerina and a sumo wrestler. They both capture your attention, but for different reasons.
At this moment, I have etchant on order, 365 nanometer UV LEDs on order, a power supply on order, UV resist film on order... and I have to build the UV lightbox exposure unit, and that isn't free, either. And there's the various trays, and bottles, and chemical storage, and the inevitable aging and replacement of chemistry. I've also invested in several different printing surfaces - photo paper, backing paper, transparencies - in order to conduct experiments. I sorta wish that I'd put all that energy and investment into a cheap CNC machine instead.
Once all my goods arrive, I'll be well supplied with enough stuff to run various experiments on thermal transfer, as well as photoresist film. But I now think that the simplest and best approach is CNC. Sigh. There's no question that you can get bad results with CNC. There are videos on YouTube. But I think the very best results that can be achieved through CNC, are superior to the very best results from any other method. And the ongoing costs are probably less, as well.
Sigh again. >Charlie