While I don't think that anyone who is truly in need should snub help offered (actually, I don't think anyone should snub a genuine offer for help, as long as it will actually be helpful), I don't think it is any crazier for someone who is poor to want designer clothes/the latest games or electronics/etc. than someone who would be in the same boat if their creditors came knocking. A lot of people spend beyond their means, or buy things that they shouldn't given their financial situation, but it's only OK to rip on the poor about it...
I like to buy "brand" stuff to donate, because I see how much people enjoy it. I'm not talking about $200 jeans or anything like that, but I do buy backpacks/notebooks/hats with cartoons on them or brand name foods to donate, for example. I live in a nice house, own a reliable car, have a stable, steady, full-time job - I can afford to buy things that people will not only appreciate (out of need) but enjoy (out of want).
Many many people who are living below the poverty line aren't there because they're lazy, aren't there because it's a great life to live, and aren't happy about needing handouts. They see the same things that "everyone else has" that the rest of us do, and want it just the same.