Making comparisons like Korea is the Amsterdam/Brussels of Asia is just flat out subjective and your own opinion.
If you are the type of NET who came to korea because you knew you could meet korean girls or guys, go clubbing in the foreigner 'hot spots', drink cheap beer, and basically have all the cheap thrills and frills because you are young and 'living in the moment' (pay the price later), then yes, Korea would seem to you to be like Amsterdam. It's simply a place to have fun and excitement.
But for many others, Korea may not be all that fun. It may be quite drab and difficult, unusual, and inconvenient. The problem is when folks treat countries and cities like it's some sort of fun resort to use and discard when you're done with, have a very construed and skewed view of life. Everyone here should know that a city or country is whatever lens you are viewing it with.
For example, when foreigners come to US, they might be thinking that America is "hollywood" and it's a land of dreams and celebrities and rock n roll (or whatever they saw in the movies and projected it into their expectations). But if you live in the US 24/7, then you know that it's not true. Life is not about celebrities, hollywood, and rags to riches gold rush dreams. Mostly, life is pretty hard as it is anywhere else in the world.
Many people who have never visited the US still think USA is a land of blonde girls and beach babes (cuz they saw baywatch and thought that's what USA is). Of course, I don't have to tell you that American life is far from that depiction. But for those vacationing to Long Beach or wherever, fine, they have the right to expect to see only blonde girls with big boobs in skimpy bathing wear.
Korea is not Amsterdam, but if you're smoking weed, drinking cheap beer, and getting head everynight, then in your subjective mind, Korea is Amsterdam, but that's just your opinion.
