[Not really racist!]

Certain articles of clothing are limited edition and discontinued..

for example, limited edition jordans / lebrons / kobes / iversons etc.
or extremely rare articles of clothing you barely can find locally... anymore..

or maybe you can't buy that brand in vancouver..
for example, abercrombie and fitch..

just because people buy used clothing doesn't mean that they have a bad sense of hygiene
also remember... as long as people look good, it doesn't really matter to them