Thank you both for your quick reply. I apologize for my grumpiness about not getting any response.
I am an artist who uses programming. I used to be a designer but have all but ceased doing that. That is to say that I am not a programmer. Non-programmers don't know with what they need help. Now that I hear responses to my half baked questions I realize that what I was asking was "Should I delve deeper into Scripto' or just use the scripting engine?"
I think that you both answered very well considering the malformed query. I've gathered:
1) Scriptographer has support for java libraries (no more need be said)
2) As I thought, Scripto' is faster than the Scripting engine (I wrote the same code in both and Scripto' 'seemed' faster. Thanks for confirming this.
3) As I thought, AI's scripting engine is a pain. Sometimes a newbie needs to know if the code he is trying to wrangle is about to work or if he will be endlessly chasing details.
I have come from writing PostScript to draw images. I really just use math and loops but the speed of the interpreters started to be an issue. I was toying with writing Python to generate paths only, but I think that will be similarly slow since I can't possibly beat the speed of AI's preview. I am interested in making some reusable code so I can call custom made functions. Also PostScript's stack has just officially pissed me off. I want to take my pieces into OOP.
I was not saying anyone was not doing enough. Obviously I am incredibly indebted to both juerg and the community here. I was just struggling with why I would use one approach over another. It seems that this is really behind most questions "Is langX better than langY". Thanks again for the clarification.
Excuse me, I must go RTFM.
gabriel