Why do studios bother with some releases...

[uk-guy]

why do film studios bother.
given the release of rocky and speed. these films just do not cut it in hi-def.
i understand the money making part of it but surely the must realize that a
20+ year old film just is not going to look good i know some older films do look great and if we are all honest? it is a bit of a lottery with some of these
older films should we be expected to settle for a bit better than dvd is that
what we expected. when venturing into the bluray format please dont get me
wrong i am sold on the future being in bluray i have some excellent demo disc material to really show the power of hi-def but i wonder how many people will
really be convinced of hi-def if there first purchase is "say" rocky

just wanted to know what others opinions of bluray have been would love to
hear other forum members opinion on the matter.