i went to the chanel store today in chicago ,ready to buy the black GST, but then i tried on the jumbo flap and fell in love! which one should i get? i want to be able to use this bag frequently. the GST seems like more of an everyday bag, but since the jumbo flap comes in caviar, i'm thinking it will also be durable. also, the SA told me that prices are definitely increasing for both of these nov 1st. the GST is increasing by approx 200 dollars and the jumbo flap by almost 400! which one should i buy before the prices go up???