Good news for many Koreans who are willing to use their Bitcoin to buy something from Goto Mall. In a way, this can help spread the use of Bitcoin as a real currency and not just a store of value (one of the many basis why some are criticizing Bitcoin). The downside here is that because of speculation people tend to be 'hodling' on to their Bitcoin rather than spend it in buying or shopping new things. However, since it is already the holiday season many can be enticed to use their Bitcoin especially if that mall would be introducing special discounts to Bitcoin users as incentives.
Personally, I would not be wasting my hard-earned Bitcoin just to buy anything from a mall. I prefer to use the fiat money because buying Bitcoin here is not a breeze and the local providers usually jack up their conversion rates to gain more and to also cover the imposed transaction tax.
Doing business with Bitcoin would soon be trending and as the number of merchants will reach the critical mass it would then be a bandwagon where other merchants would have no choice but to also join the party or be left behind.