I think it should be a personal decision. As a skull on a bookshelf I feel my remains would have far more impact than if I only had a plot somewhere that was in

I think it should be a personal decision. As a skull on a bookshelf I feel my remains would have far more impact than if I only had a plot somewhere that was infrequently visited. It's also more of a conversation starter. Also, there is nothing to say you can't have both - the body could be in a plot, the skull left in a creepy library in the ancient mahogany library I left my children. You know, the usual.