huh?The main reason is I really hate the way the PC hosts handle VST automation. Logic does it the way you'd expect - each parameter displayed in its own lane and easily moved along with the clip. You'll be surprised how much this hurts in Sonar or Cubase. It's also fairly easy to convert midi cc data to a normal vst parameter automation track.
SX and Nuendo both do exactly this. When you activate automation for a VST instrument they become available within the VST instrument track lane. The same applies for a VST effect plugin, except those automation lanes appear within the audio track lane that the plugin is inserted on.
you just use the +/- button to drop down an automation lane and you can choose whichever automation parameter you would like to see and edit for that lane. IF you need more automation track lanes, you just click again the + button and another lane appears for whatever you like. you can have a lane for every single automatable parameter available within the VST instrument or plugin.
it amazes me how many times you see people switch an application, when it was the fact that they didn't know how to do something within the app.
What's even more interesting is Nuendo v1.x has had this way before Logic had this first implemented in Logic 5/6. Cubase SX 1 was the first version to have brought this style of advanced automation into the Cubase realm.