PremiumPress has been a pioneer in ultra niche WordPress themes. They have pushed the limits of WordPress by creating themes that do more than you would expect from a "blogging" platform. For example, with their themes you can make websites for coupons, auctions, real estate, classified ads, an online store, a link directory— and they have plans for more. Their themes are well-priced considering the features they include. You can buy them individually or spend $249 for access to all of their themes (including future themes).
Premium WordPress theme sellers typically include support and upgrades with theme purchases. Visit PremiumPress's website for complete details including the most up-to-date pricing.
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