Chamberlain, South Dakota, Malaga, Spain, whatever...

I remember stopping at the "South Dakota Store" in Chamberlain several times with my parents in the past.  Is it still open?  Anyway, as I'm walking in Malaga, Spain today, what do I see but a store called "Dakota U.S.A." selling "original products" from Dakota!  When I tried to engage the clerk we mostly exchanged smiles and the waving of arms, but no real information about why the store was started.  But now we know the Chamberlain store has some competition.