This is (mostly) for the Canadians, but I'm sure it's a reminder for everyone. I'm a social worker and recently started working at a major hospital in Calgary. A big part of my job is repatriating patients back to their home province/city (ie - hospital to hospital transfers after a major injury).
Long story short, provincial health insurance (your health card/number) does NOT cover medical repatriation. If you're from Alberta get in a major car accident or avalanche or whatever in BC and it requires a lengthy hospital stay/rehab (ie - spinal cord injury), they will send you back to Alberta once you're medically stable. And it's pricey...
For example:
Calgary to Vancouver - $12000
Calgary to Toronto - $43000
Calgary to Halifax - $50000
I honestly had no idea this was an issue for Canadians and assumed something like medical transportation between provinces would be covered, but it's not. Hopefully no one here ends up in a situation where they need to use travel insurance, but it's bad if you don't have it and figured it would be something worth passing along.