LEGO 10333 Barad-dûr (new, sealed) typically costs $52.16 less than LEGO 10316 Rivendell (new, sealed) on eBay right now ($611 vs $663 median asking price, item + shipping). Per piece, LEGO 10316 Rivendell (new, sealed) is cheaper: $0.11 vs $0.11. Prices from filtered US eBay listings, checked twice a day; asking prices, not sold prices. How we price.