Repo's should only be allowed to be place on the path the rig has traveled, no further then the last progress either. So you can set it back as far as you want, and try a completly different line, or start just before you flipped it or lost it.
As for spending money to win, I find that far from the truth. Look at my torsion rigs and how well they have done. I don't need a big dollar rig to win, but I enjoy the hobby enough to put more into it. Most of the money in my rig is in parts that will not break as often, so I do not have to wrench on it all the time. I ran most of this year with a cheap 645 servo, and that did not hold me back at all. The beadlocks do not help me win, nor do the cvd axles. A brushless setup isn't much more then a brushed setup, and my battery packs cost $20-$30.
Dig has also gotten me into trouble before and cost me points because I did not use it correctly. It still takes driver skill to use dig, and it does not always help. If you look at the courses I layout, I do not build them to favor dig, or any particular truck setup. I've built courses that hurt me more then anyone else, and I have been forced to take out a gate marker in order to run the course.
I probably will not focus as much on winning the season next year, and compete with my axial, and scale rigs just for fun.