Most all of my stuff is free or plain, but the only brand clothes i've bought over the past several years has all been offroading stuff. team stuff, event stuff, shop stuff. It's not my everyday wear, but it's an easy way to make a donation to a place.
not saying you are the target market, but it is a very successful strategy for most marketers. business' that do other things give away gear to get their name memorable, business' that don't do other things get out there and sell gear to pay their way.