Fashion houses certainly want to sell what's hot, but to a large extent, they influence what's hot. So this has me wondering if, from a profit standpoint, they have an incentive to promote big bags. Is this analagous to, say, home building where the extra amount you can charge for a larger house far exceeds the extra cost of the additional square footage? Once all the major costs for design and labor are in, maybe the materials cost increase to add a few inches to a bag is negligible, but the retail price can be jacked up quite a bit.