Retro II Heritage via eBay offers the adidas Men's NBA Team T-Shirt in six five styles for $6.99 with free shipping. That's $25 off list and the lowest total price we could find. It's available in a variety of player types in sizes S to XXL, although not in all size/style/player combinations.

Note: We also saw a range of adidas Men's NBA Climalite T-Shirts for $9.99 with free shipping three days ago.