Costco offers its members the KidKraft Majestic Mansion Dollhouse
for an in-cart price of $139.99
with free shipping.
(Non-members pay $5 more.) That's the lowest total price we could find by $29. Sales tax is added where applicable. Features include eight rooms, 34 furniture pieces and accessories, an elevator, and more.
Note you may need to sign into your account to see the discount in-cart.