A hundred bucks for 1011 pieces of Infinity War chaos — the Sanctum looks good on a shelf but the price tag was an ask even in 2018, and it still stings.
The parts alone are worth about 90% of the street price — the basis for this D price read.
FairParts are worth about 90% of the price — close to what the set is worth.
The Sanctum Sanctorum Showdown landed right at peak Infinity War hype, and the Sanctum facade itself has real shelf presence — that arched window reads across a room. The problem is LEGO® charged like this was a collector piece when it's really a mid-tier playset with a collapsing floor gimmick and some foam dart launchers. Five minifigs including Ebony Maw and Cull Obsidian help the case, but the villain duo alone can't justify a $99.99 price point that was already aggressive in 2018. The build experience is competent without being memorable — you'll enjoy it once, but there's no section that makes you stop and think about the technique. It sits at a C for a reason: not broken, not brilliant, just a licensed set doing exactly what licensed sets do. If you're an MCU completionist, it fills the gap; if you're spending carefully, there are smarter places to put $100.
This grade blends these community reviews with set facts and market pricing, and updates as new reviews come in.