Hoping to bring the missus to somewhere special. But all rates are the same as mainstream third party sites. Anyone here can help out?

Seoul, South Korea
Marriott Dongdaemun
04/03/16 - 04/06/16
Executive Sky View, Executive level, Guest room, 1 King or 2 Double, Skyline view

Non-refundable
420,750KRW + 420,750KRW + 420,750KRW + 265,072KRW (taxes and fees)
1,527,322KRW

Refundable
495,000KRW + 495,000KRW + 495,000KRW + 311,850KRW (taxes and fees)
1,796,850.00KRW

Thanks in advance