You've got me all wrong Chromatic.
I don't spend money on tyre shine but detailing I'm into big time thanks to some of the members on here (ilogikal1, downhuman & EvoStu just to name a few).
I wash my car every week (jet wash, snow foam, jet wash, Megs Gold shampoo ~ two bucket method, jet wash, dry towel) and wax it every two weeks. Then I do a full Megs three stage detail every month or so. It's always hoovered to within an inch of it's life and my car is spotless as my friends will testify.
Just don't see the point in spending big on something just to make the tyres shine as my Supermarket silicone type spray does the job and it's cheap enough to apply every day if I like.