I cannot understand why you complicate it so much. LFS is an effin old game, with way too outdated graphics and content.
The only 2 things left good in LFS are:
- Realism
- Great programming with special features you won't see anywhere else all together (custom autocross-camera, fully customizable hud and POV, conveniently-organized menus etc etc)
I don't wait for the new physics because, no matter how good they are, the game will remain OLD. Forza or GT you have mentioned may not be so realistic, but have so much content, real life cars, great graphics, great high quality tracks (real and fictional) etc etc.
I am S2 only since october but hell, I feel the money were well spent. Perfect stats stuff (lfsworld) with amazing features (watching live a race from a browser? even with mini virtual cars? great). So I could proudly quit LFS now with no "wasted money" logic.
Community and game updating are depended on each other. When a game has updated development, the community grows, and when the community grows the support is continuous, like LFS was back then, and like all the NEW games are now.
tl;dr: Scavier should have been working, for at least the last 3-4 years, on a sequel, with new graphics, new content, new physics etc. And yes, we should pay another 30$, because it would worth it and it would compete with very famous racers. Working on S3, physics and sciroccos on such an old game is so wrong.