How could it not be profitable to put old PS1 games on PSN. It's not like they have to stamp out any discs or anything for them. They could make a crap ton of money if they were to put a lot of good PS1 games on there for download. I would really love to have some spyro and crash put on there.
End of 2009 sales predictions:
PS3 - 33 Million 360 - 40 Million Wii - 75 Million