I'm talking about buying an item, such as a gadget or something for a hobby or for the house... not financial assets that you buy to store value, such as Bitcoin, gold, or art. Or tools you buy to work with.
You don't need to share details like price or brand... just the name of the item.
My biggest purchase was a image projector that we bought with the idea of watching movies from bed...we have used maybe twice in a year...
What about you?, what have you bought that you consider was expensive??