I wear all the name brands (Nike, adidas, Yonex, etc.), but buy last years (or in some cases, two years ago) stuff.
I've found that if you (1) buy TW gift cards when they go on sale (20% just before X-mas), then hold them until they have a "10-20% off clearance items" sale, you can get real good deals. For example, I picked this up in black & yellow for ~ $18:
I think it retailed over $50. You just need to be on top of things, and stock up when stuff you like goes on sale.
I don't think I've paid over $20 for either a shirt or shorts ever.