Considering Samsung has been around since 1938, I'm sure they've had stores for a long time. I've seen Samsung booths like that inside other stores for years, just because Best Buy are having them now they have to be copying?
Even if they did so what? You're complaining that they're having a store? Is Apple the only company allowed to have them?
You act as if this is the first time Samsung has copied Apple (or anyone else), or that it's just mere coincidence, or maybe that Samsung is placing a "store within a store" inside Best Buy completely without knowledge of Apple's "store within a store" inside Best Buy that has been present for years.
By itself, in isolation, this is not a big deal. As the latest in a series of blatant copying maneuvers, it's beyond ridiculous. Samsung should just rename itself Applesung and move on.