A bar cart is best when you entertain often and like the ritual of bringing drinks into the room. A cabinet is better if you own more glassware, want to hide labels, or share a small space. Neither is more sophisticated. The right choice is the one that keeps tools close, surfaces clear, and the room feeling intentional after the guests leave.
The cart is a display object first. That can be useful. It creates a visible station, moves closer to guests, and makes a small collection feel deliberate. The cost is maintenance. Open glassware gathers dust, labels compete with the room, and a cart that is too full quickly looks like storage overflow.
The cabinet is calmer. Doors hide visual noise, protect glassware, and make it easier to store backup mixers, napkins, and tools. It also suits bottles that should avoid light and heat. The tradeoff is that a cabinet can become a black hole if you do not divide it into zones: bottles on one shelf, tools in one tray, glassware upright or hanging, and open vermouth or fragile mixers somewhere cooler.
Choose a cart if you have six to ten attractive bottles, use the bar weekly, and can edit it after parties. Choose a cabinet if your room is already busy, you own more supplies, or you want the bar to disappear between weekends. Either way, leave negative space. The most expensive-looking bar is usually the one with fewer things on it.
Further reading: House Beautiful on bar carts versus cabinets and Food & Wine on protecting bottles from heat and light.