Bcoz rights of these films cost a lot of money hence every broadcaster first tries to recover the investment by airing them inbetween popular movies on flagship/main channels which happened with Bachna Ae Haseeno too..... Now that lot of time has gone by since movie rights were acquired and film got required airings on main channels hence it is appropriate to add it in Star Gold Select movie library where we know hardly any ads get shown hence revenue earned is extremely minute, even as compared to mass channels such channels r subscribed or viewed by less people too specially when they r not part of or available in basic broadcaster or DPO Bouquets ....main reason for keeping niche channels like these out of basic broadcaster bouquets or even in rare cases even out of premium broadcaster bouquets like what we see with Disney International HD is to maximise subscription revenue so that somehow cost being incurred to run such channels can be recovered even though this helps only in a very small way as largely losses made r absorbed in overall revenues earned by a network / broadcaster