The comparison only works when both rates are all-in. Each side carries hidden lines, and they are not the same lines, so a fair total needs both sets added back.
The hotel scales with rooms
A hotel multiplies. Every room carries its own nightly rate, its own tax, and often its own resort fee, so a group that needs six rooms pays six times the line, not once. Then the family eats three meals a day at restaurant prices, because a hotel room has no kitchen. For a large party the dining and the per-room tax together can rival the room rate itself.
The villa is one rate plus its tail
A villa charges once for the house, then adds a tail the listing omits: the chef and food, the service charge, the staff gratuities, the cleaning, and the refundable deposit. That tail is why the villa headline runs 55 to 75 percent of the all-in. The fixed nature of the rate is the point, because it does not multiply with the head count, so each extra guest is close to free.
The food is where the villa quietly wins
A villa kitchen with a chef cooking breakfast and several dinners at food cost is far cheaper than feeding the same group those meals in a hotel. For a family of eight or more the dining saving alone can cover a meaningful slice of the villa rate, which is the line most people forget when they compare sticker prices.
What the hotel buys that the villa does not
A hotel sells daily housekeeping, room service, a spa, a front desk, and zero coordination. A villa asks the group to organise itself and the staff. On a short city stop, or a trip where nobody wants to self-cater, the hotel earns its premium. The villa is a better deal and more work, and the trip type decides whether that trade is worth it.