Revelstoke?
If so, revelstoke like Vancouver is actually pretty hemmed in by water and mountains. There isn’t an infinite amount of easy to build on land like the on the prairies.
Quality of life in revelstoke is probably amazing! Small town, ski hill, mountains, biking, snowmobiling, fishing, lakes, rivers, airport, and lots of jobs
Demand will always exceed supply in desirable locations, that is part of what makes them desirable. Would you spend 30% of you and your wife’s income to secure a plot in such a paradise? 40%? 50%? Lots of people will take the bet and risk. If you lose and go bankrupt well then you move to the easily affordable town in the equivalent of the fly over states. Odds are the million dollar mortgage will get inflated away you just have to tread water while interest rates are historically low until you can juice your income or hourly rate up enough to make the million dollars you are in debt seem trivial.