The edge cases aren't fully captured.

That accountant driving to Lowes twice a year to pick up mulch, finds out he's missing a shovel or a reticulation fitting or something unexpected. The pickup truck is a solid work horse in new edge cases.

There's nothing worse than finding out that your hatchback can't fit a ladder you needed to buy because you broke off a section of the gutter when you tried to pull a broken branch off your roof.

A guest bedroom is often extra storage, kids sleep-over room and a communal signal that there's a spare bed for friends and family if they ever need it. The social signalling is worth the price of admission for the home owner.

Just saying the edge cases cover more outcomes than direct use.