Throughout the Iron Man franchise Stark is often seen with a drink in hand. While he's known to indulge in the odd martini and bottle of sake, Stark is usually seen consuming champagne or scotch. Considering his eccentric taste I imagine he'd have a collection of rare liquor in his house, probably sipping on something like a Glenfiddich 1937 "Rare Collection" (worth an estimated $167,000) or a Macallan 63 Year In Lalique (worth an estimated $641,000). Alternating between a bottle of scotch and a bottle of champagne per month, Stark's alcohol bill could put most people in a house with change to spare.