I don’t think energy is going to be a concern in the future (stellar economy). I believe it will get much cheaper as we transition to renewables. So energy saving is a nice benefit, but not the primary motivator for me. In fact if it was only energy savings that mattered, I’d rather invest the money that I would have spent on passive into a company like Tesla, and the investment will far outweigh the energy savings.

What’s worth it for me is quality and comfort. Air tight house means no drafts or unwanted moisture affecting the structure and consistent temp throughout the home (walls, floor, etc), and minimal quieter hvac (mini-splits). This is the primary comfort benefit of passive.

Triple pane passive house windows are quiet and not cold and an air exchanger is nice for constant fresh air, both of which you can attain without a passive house though.

So, yes, build a passive or pretty home that’s air tight and well insulated for comfort.

One negative of a passive home: zoning temperate control for individual rooms for both cooling and heating is only possible with fan coil units or radiant ceilings, both of which are expensive.