I've been saving up miles for a trip with my SO to travel longhaul anywhere in First. I've informed her about it, and to be very honest, she's far more excited about the potential destinations than the flight.
I, on the other hand...
I think it's just different priorities. Most likely I'd want to fly HKG-JFK via YVR just to milk the extra time in F.
Don't get me wrong - I know she appreciates travelling in premium cabins because she's always jealous of my getting op-uped when I travel alone. But, I guess, the flight for her is just a way to get from point A to B. Maybe after she flies F she will disagree.