Yeah, you can game the system, pretty much any system, if you have the money. That just means the systems are rigged.That is correct. There are private clinics in Canada where you can get many procedures done. To access them you must be from out of province and pay the full freight.
In general they do "day procedures" but some will have post op patients stay in a nearby hotel where you're monitored by a nurse overnight or for a day or two. If there are complications you would be admitted to a local hospital - which (while logical) is actually an abuse of the public system.
I have a great dentist. I asked him why he scheduled separate appointments for things that could be done in one. He smiled and told me he could bill insurance twice. Oops.