All I can think is that the supermarket in question wanted to sell it dirt cheap (as they've done with previous titles lately), and perhaps Rockstar weren't happy about that. Could they then have gone as far as to refuse stock of future titles to the store? If so, maybe that then caused the store to turn around and say "well, we don't want to sell this one either".
Faith in gamers' masculinity + 1
Those are some hotties right there! Nice one.
Except that's what devs have been doing with DLC for years. All DR2 does differently is allow players to do it without having to buy / keep the original disc.