I would be in the same boat if I had a PS3. And as an "only Nintendo console owner" (by the way, I can't even afford a handheld and at the time I was still employed), you felt you got undermind. Which I shouldn't really feel that way, but you just do.

Atleast I can justify their decisions (to an extend) being that Wii is an underpowered compare to the HD twins. One of the few exceptions are exclusives and a game I like to call Tiger Woods PGA Tour for the Wii. ;)

When i buy a Nintendo system, i only care about the exclusives. Be it Nintendo or third party.
I never bough a Nintendo system for multiplatform.

The same can be said about when i bought SEGA systems.

Multiplatform games end up not beeing too great history proves. But, in this gen we got some good ones. This was because the hardcore market was fractured in two perfect halves.

I bought Viewtiful Joe, Resident Evil 4, Resident Evil REMake, NBA Street v2 (?), LOTR: Two Towers, and Soul Calibur 2 on the GameCube. I guess Metal Gear Solid: The Twin Snakes as well counts as a game technically published by Konami too.

On the Wii I bought basically nothing from third parties but GoldenEye and Monster Hunter Tri and Monster Hunter really wasn't my thing (I can see the appeal, but it's just not for me) so I traded that in.

On N64 I think I had pretty much zero third party games, lol unless Star Wars: Rogue Squadron counts.

The GameCube actually wasn't as bad as people say third party wise. It didn't have GTA or Final Fantasy or Devil May Cry or MGS2/3, but it did have Resident Evil, Tales of Symphonia, Baten Kaitos, Viewtiful Joe, Killer 7, Metal Gear Solid: The Twin Snakes, Star Wars Rogue Squadron II and III as exclusive/premiere titles, which for my tastes wasn't a bad trade off (wasn't interested in GTA). Final Fantasy: Crystal Chronicles was OK too I guess, but no FFXII.

If I was Nintendo I probably would've squeezed Squaresoft a little harder on the Game Boy license and insisted on a more mainstream FF game or (gulp) even a FF7 Remake.

GCN had most multi-plats otherwise (Beyond Good & Evil, NBA Street, Soul Calibur 2, Timesplitters 2, etc.).

Not particularly. I would have cared for this one year where they have the most powerful console, so should have got the best multiplatform games, but that didn't pan out. That said, I am used to the Nintendo console being good for Nintendo games and nothing else, so I can live without them.

and who's fault was that? 

I don't care all that much because I am primarily use my PC for big thired party games. I care about EA in particular, though, because they are the only company that makes certain games due to licencing issues (mostly sports games) and their PC support with annual sports games is less then stellar.

Crappy shovelware I can live without. Piss poor ports or "test" games I dont want. A solid game with a decent attempt to promote it I would like.

Yes and frankly I think its a dumb question.

Anyone who really is a "gamer" likes to play games... lots of them. I want to play a variety of games from many different companies while not having to spend hundreds on different pieces of hardware.

I will want Nintendo IP first and foremost, thus I have to get a Nintendo console. But, I also want plenty of 3rd party titles.

I usually will get 3rd party exclusives if they are good.

I almost never get multiplats and why should I?

If they use the Wii U Gamepad in a really cool way, I'd care.