I think they're cool. Why spend all of that money on polished wood and brass that nobody will appreciate once it's buried in the ground? Ashes to ashes, dust to dust...we are supposed to be "recycled".
My mom always said she wants us to just bury her unsanctimoniously in the back yard. LOL. I told my family to bury me in my compost pile, just joking of course. That's where we bury all of our dead chickens. No problem if you bury it deeply enough! Our pets get buried under a special tree or bush, ultimately for fertilizer, but also to preserve their memory.