Rice you've heard from me via email. Obviously I'm a GoldenEye die-hard so I vote for more Rare games support.
To me, emulation is worth upgrading my system for, so making a plug-in that is geared towards low end systems doesn't seem worthwhile to me.
I guess my point is this. Instead of trying to cover all the ground and improve all games, it seems more prudent to concentrate on the popular titles. Rare is the company that provided those! I suppose this also depends on why you work on this project and whether or not mainstream appeals to you or not. Making the plug-in specific to a couple of games even (GoldenEye and PD) would make the efforts more than worthwhile. If you look at the sales of Nintendo 64 multiplayer games, these two are at the top or right near it. You could argue that a game like Mario Kart sold more, but the fact is this will be onine with the GameCube soon.
So, if you are looking at the future or the bigger picture, speaking specifically of online play, it makes sense to concentrate on the multiplayer games. If you can improve those games with your plug-in, then you've upped the ante. The games would be a more worthwhile experience that many more people will be interested in, especially if you said the word "online" Nintendo 64. People would be scratching their heads...then they would be hitting the ground once they actually saw how amazing PD looks emulated.
This is all relevant to the poll at hand. If you see the future as on-line emulation, then concentrating on the top multiplayer titles makes sense. That is my opinion. Again, PD and GE alone would cause a ripple in the gaming world. That may sound funny but c'mon let's be honest here. The Nintendo 64 is a bloody incredible system when you can see it emulated on 1964 on a PC monitor. The reality this isn't old school at all.
Rare all the way. I think I made my point....