I'm thinking more along the lines of the major titles that have a huge following. Like Kingdom Hearts, the Mana series, and Final Fantasy. Now, FF I can see why they didn't release ANOTHER remake of the originals on the newer systems since they already did that with Chronicles, Origins and Anthologies, but they left out 1 game - Final Fantasy 3j. They brought it over to the DS only, which as a fan of the series, is annoyed with that. They should've added it into Origins, Anthologies or Chronicles since they remade the rest of them, and since I refuse to get a DS for 1 game, it's sad to know that I'll never be able to play it the way it was meant to be played.
Other games like Mega Man, Mario Kart, etc,. already exist in one form or another on the home consoles, plus the Wii had the VC so they'll usually end up there anyways. I didn't mean every game should have a port over, but the major ones I think should.