I have passengers far more often than I use a bed. Honestly I think I might use a truck bed once a year at most and that's if I'm looking to use it.

Families, etc. All probably use those back seats more than they would a truck bed. But your argument isn't wrong- I just agree with op that for a lot of people a bolt is a more attractive option assuming you're not super into the core of the slate- ie. No tracking, etc etc