By combining two apartments, Mariah Carey created her opulent Tribeca penthouse, which is worth between $30 and $35 million.

Despite owing $18.6 million in mortgage debt, Carey’s decision to borrow for the property may be financially savvy. 

By investing the money saved from mortgage payments, Carey could potentially earn a higher return on investment.

  According to MoneyWise, Carey understands that the opportunity cost of tying up too much money in a home can lead to better financial decisions, such as opting for a 30-year mortgage over a 15-year one.

Ultimately, borrowing for a property and investing wisely could lead to greater financial security.