If there's even a tiny upgrade, it's a tiny bit more expensive...

Apartments in Korea have bid/ask prices listed just like stocks. When pricing them, they're set by comparing against one another. If a unit is deemed better than a 1 billion won unit, the price is set at 1.1 billion. It’s the same logic for different buildings, floors, or orientations even within the same complex—if the 2nd floor is 1 billion, the 12th floor becomes 1.1 billion. Whether it's a corner unit or a middle unit matters too. Due to the information overload, uniform layouts, price volatility damping in mega-complexes, and increased liquidity from high volume, Korean apartments have basically become mass-produced goods... Plus, you can compare the 'used' market prices so meticulously. They're all just standing in a neat line according to value.

Also... you're always exactly 100 million won short for the house you want...