it's sort of a big show and you can definately figure out how luxury brands play the supportive roles by puttin their latest goods on the lead actor as well as actress. And good looking models feed back, no doubt the drama has promoted sales in return. for me, they r acting perfect win-win situ. it has been there for a long time, remember "sex and the city"? each episode varies its main content a lot but the fashion topic will be there all the time... personally I'd prefer the latter, in korean dramas, relationship normally dominates all and that makes me feel like..perhaps sth more significant could be added.