I might have been right.
The pluggo thing to install first is not a very good point in my opinion (i try to keep my machine clean, avoiding to install 12654987 software, even if i always try new stuff.. !), but i did not know that you could put your plugins wherever you want...
That way it is nicer, then.
I tried some pluggo plugins (pluggoJr, the movie plugin for Live, phasetone, etc.). It was fun, but not so essential to me... (my very own opinion).
Ok, this is a good reason !Oh, and the reason for using Pluggo to develop is that for people using Max/MSP it's a pretty straight-forward port over into VST. Personally, I can do things with Max/MSP in a few minutes that would take me hours upon hours of frustration in C++, or aren't even possible as far as I know Synthedit/Synthmaker (quick coding of openGL GUI stuff, for example), so it's the path for me right now.
