Etude House Phillippines Grand sale!!

After 50,000 likes on their facebook fanpage,Etude House Philippines is having their grand sale on all branches!!!
Shall i go on the first day? there might be a long line,and you know what happened to f21 when thay had their first sale...Buh-na-nas! If I'm going on a later date,i might end up with OOS products...Oh well Good luck to me!
What i plan to get: ( and only plan to get what i need LOL!)
BB cream
foundation powder/finishing powder
highlighter
contour blush-hopefully highlight /blush/ contour in one
eyeliners
mascara
stippling brush (hope i can get a hold of this one)
eye primer
concealer brush
face primer

have to research on all this before i go,I'm not sure if SA's will be able to accomodate questions.they'll be really busy in those days