Itaewon was indeed the place that I spent the most time "bob watching" - it was great during the morning/afternoon with the shopping crowd, in the evening with the dining crowd and in the late evening to early hours of the following morning with the clubbing crowd . I was also staying in Itaewon so it was perfect!
Insadong was also pretty good for bob watching.
I may need to go again in September, already looking forward to it!
And I am reminded now that one of my favorite vids is also Made in Korea!