Yep, in Sask right now natural gas is about 1/7 the cost of electricity, which means at best a heat pump only costs about 2x as much to run as a modern gas furnace. Maybe as our grid transitions to renewables and carbon prices rise those costs will become even or shift towards benefiting heat pumps, but I suspect at this point you’re not going to hit break even over the typical life of a heat pump. Much more affordable to stick with gas for now, and maybe start moving to heat pumps 10 years from now. Same argument for water heaters, gas is going to be cheaper than a heat pump for most cases. Maybe new builds lean towards a heat pump because it doesn’t need venting which minimizes HVAC needs, and/or if a person has a solar system that minimizes their electricity costs.
What are the gas and electricity rates in your area? In Sask, we’re paying about $0.16/kWh for electricity and about $6.40/GJ. There’s about 278 kWh in a GJ, so the electricity cost works out to about $44/GJ, or about 7 times the cost of gas. A good coefficient of performance for a heat pump seems to be about 3, and modern gas furnaces are easily above 90% efficiency so the actual cost difference for gas to electric heat is about 1:3.
Now, newer houses are better insulated, so your heating load on a 2012 build is going to be a lot lower than a 1977 build. You also didn’t mention your heat source. Ground source pumps are pretty good efficiency year round, but cost a lot for the initial install, while air-source pumps have a large seasonal variation in their efficiency, which is particularly troublesome in central/northern Canadian climates.