Classic thread!!! And actually super helpful for a lot of people out there.
What I regret:
Not taking time to truly think through what it is I want out of a vehicle, and being hasty to get it 'off road ready' instead of slowing down, stepping back, and thinking. I put on and bought quite a few things for my TJ that I have either never installed, or since removed. It is now in a state of an unfinished build - although it does work just fine, but not where I would like. But its a learning process, right?
Things I don't regret:
Spending hours, days, months...heck YEARS 'thinking', studying, researching, inspecting...etc. to truly figure out what my end goal and desire is and combine that with what the reality is likely to be. Then being willing to drop serious $$$$$$$ to overbuild, over-prepare, and do it the RIGHT way the FIRST time - ie. my truck build.