(2) Hanbok is very beautiful. When I went there, it happened to be the handover in summer and autumn, and it happened to be a discount. Most of the small T-shirts are around 10000 won, and only 3000 won for one. The quality is not bad. I bought a lot of cheap and beautiful little clothes, and the styles are absolutely fashionable.
(3) Korean ginseng is very expensive. I bought 4 or 5 boxes and haven't used them yet. I don't know how it works. It is said that it can beautify the skin, remove spots and acne, keep fit and so on.
(4) Crystal seems to be a Korean specialty, but it is not cheap and I don't know the authenticity, so I didn't buy it. It is suggested not to buy some trinkets in the international market in Busan, because most of them come from Yiwu, but the price is several times that of China, and the price is excellent! As for electronic products, if they are not made in Korea (but there are few good brands in Korea), I think it is more cost-effective to buy them in Hong Kong!
The above are personal opinions, for reference only!