Thanks for the real world comparison, it is very useful
Glad your cap problem was taken care of under warrantee!
We originally thought we would get a cap, but had some concerns about weight and space limitations (what if we wanted to haul something too big to fit under cap?). I think those times will be very slim, though, since so far nothing has been too big for my minivan and the truckbed with cap will offer about the same amount of space.
We mainly want to keep things dry and secure - bikes, gensets, patio furniture, stuff of that nature. Would probably lock the valuables with a cable to the truckbed in addition to storing them in a locked cap.
Should we ever fulltime, which I am drawn to, the cap will come in even more handy for storage
Installed a BedRug, like it a lot so far.