If your home is your castle, sometimes the best castles are made of waterproof polyester rip-stop. When it's just your tent between you and the elements, you can't be blamed for having exacting standards.
If your castle is in need of an upgrade, you should get on over to Mountains Plus. They've got the new 2010 Big Agnes Tents coming in, and there's discounts of 10-20% all over the place. Even cooler, there will be more discounts all the time as the 2010 stock continues to come in.
There's super light backpacking tents and super roomy ones for car camping with the whole family. Plus, they always give you free footprint with any tent purchase and free shipping on orders over $45.