No, it's totally fine for a mint julep to cost a month's rent, ok? It's the Kentucky Derby and it comes in a special cup!
Like really special. Gold and rubies and other shiny things justify the price tag, or whatever. Sorry, the gold one is actually $2,500. Ya know, pocket change.
The kicker is, you know whoever orders this isn't gonna tip 20%. A tip of the fancy hat to you, Derby bartenders. God speed.