TIL there’s actually a difference between coffin and casket. Coffins are tapered to the body (6 or 8 sides), usually with a separate lid, typically far cheaper. A casket is a rectangle with a hinged lid, typically with rails attached for carrying and usually far more ornate & expensive.
Seriously! Cremation is cheaper but why not just dump me in a big black bag? I’ll basically be cremated anyway for far cheaper.