You bring up a good point there, Kwaad. Lets run through what I own:
Dreamcast - I own 12--16 DC games
PS2 - NFL 2K5, Space Channel 5 part 2, Gran Turismo 3, MGS2 -- so 1 out of 4 games being Sony 1st Party - 25%
Cube - SSB:M, Lego Star Wars, Mario Golf, Metroid Prime, Mario Strikers, Animal Crossing, F-Zero GX, Viewtiful Joe, Ikaruga, Batallion Wars, MLB 2005, Madden 2006 -- So maybe 6 games out of 12 being Nintendo 1st Party (though I may have omitted some of my other games), - 50%
I support my 3rd Parties!