Purchasing a private Boeing 757 is a significant investment reserved for the ultra-wealthy or major corporations, typically costing around $100 million for a fully customized "VIP" version. While the base price for a well-maintained used airframe might be lower (ranging from $5 million to $15 million), the true cost lies in the "green" completion—the luxurious interior refit which can easily add $50 million to $80 million to the price tag. These "flying mansions" often feature master bedrooms, boardrooms, and gold-plated fixtures. Beyond the purchase price, the operational costs are staggering; expect to pay between $8,000 and $15,000 per flight hour for fuel, crew, and maintenance. In 2026, the market for these "VIP airliners" remains niche, as many buyers prefer the more modern and efficient Gulfstream G700 or Bombardier Global 7500, though the 757 remains a popular choice for those who require immense cabin space and "presidential" presence, such as Donald Trump's famous "Trump Force One."