1. things that are expensive to buy
splash out on a big-ticket item
Big-ticket items are not just things that are desired, they are often necessities for an individual or business. A 'big-ticket item' is something that is high priced or expensive. In a retail context, a big-ticket item is one with a selling price and profit margin higher than other items in the shop. This expression is used in a social context but is more common in a professional one.