The Hervé Léger boutique, on Madison Avenue, has started the bi-annual clearance sale where winter clothing, shoes and accessories are reduced up to 70% off. The sale is also online but the prices aren't as good as in the store.
yellow and black bondage dress reduced to $375 from $1250, an orange/red signature style bondage dress is $315 from $1050 and an essential black a-line skirt is $234 from $780. There is even a classic one-shoulder black dress that's $435 from $1450.
Sizes do tend to sell out quickly. If all else fails you can shop Neiman Marcus, which still a decent selection of sale dresses from the master of bondage.