i like the idea - i got spare change
I am usually broke since I am disabled(Epilepsy) but I would still donate some money anyway because I think TPT is such a great simulation with so much flexibility. I have just started writing my first scripts and at the same time, I am starting to learn Lua a little bit.
I am also very certain that you could generate a lot of money and attention if you put some kind of fancy UI version of TPT on Steam.
Don't get me wrong.I don't think TPT should ever go totally commercial but some money for further development could help a lot. Maybe somebody would be able to work onTPT full-time then.