Posting in the Magento forums has been disabled pending the implementation of a new and improved forum solution which should better serve the community.
For new questions please post at magento.stackexchange.com, the community-run support site for the Magento community. We will be providing updates on the new forum solution soon. For questions or concerns please email email@example.com.
For stores selling clothing it would be important to have quantity discounts (price breaks) also on configurable products. So a customer buying 1 white t-shirt and 1 black t-shirt would qualify for a discount set at the level of two t-shirts.