LEGO 10316 Rivendell (new, sealed) typically costs $12.22 less than LEGO 10305 Lion Knights' Castle (new, sealed) on eBay right now ($663 vs $675 median asking price, item + shipping). Per piece, LEGO 10316 Rivendell (new, sealed) is cheaper: $0.11 vs $0.15. Prices from filtered US eBay listings, checked twice a day; asking prices, not sold prices. How we price.