Nintendo systems (home) dont' get it because Rockstar chooses to be one of the last few companies who believe that made up Sony Media campaign of the mid90s against the N64 calling it the KIDDIE BOX with no M audience. They made it as fact in words on the Gamecube era when asked by many places since they oddly did that pretty damn good GTA Advance title but snubbed the GC. It was odd because they actually tried to rationalize the GBA as a more adult system than Nintendo home devices. Then on the Wii they've kept it up saying there's no audience despite the fact things like The Godfather sold better on Wii in the Blackhand Edition vs the HD versions...yet they put up stuff like Manhunt 2, Bully, and so on. They're just excuse making shitheads, plain and simple, accept no other excuses as they've run out. Sure it would have been a bit angering but they could have very LATE given the PS2 Trilogy pack to the Wii or even the PSP titles like Sega did when halfassing Alien Syndrome to the Wii early on.
I think I just have to edit this saying I agree by far that The Godfather on Wii (or any of them) is largely better than what GTA has done since Vice City on the PC/PS2 days. GTA is stale, same old shit, same old stages, just another coat of paint to sucker in the masses into it being 'oooh all new.' I'm done with GTA as they've bored me to death as the DS game was a snore and the drug bit was poorly done, and GTA4 was more of a GTAdaycare where you got shoveled around for hours, stuck with some semi-sims facebook bullshit with the cellphone, and takes forever to get a weapon to have it taken back after you do the stage. Combine that with wretched one sided AI where a cop could be next to you, a guy punches you and it's ok, you swing back and you get a gun pulled on your ass. Terrible game, hate the media suck-ups for 9'ing the crap out of it.