Actually, I remembered the news released back then that Intel spent 7 billion won (Around 6 million usd) on that.. I'm sure if that included everything; CFs (few short vdos), Promo Pics, a song and MV, one showcase and if I remembered correctly 6 months endorsement (or was it a year?) or just endorsing fee but it sounds like total amount. Impressive amount but after SM went through their cut and expenses each girl probably didn't make as much as we think..