Ya I agree I always hear "it's too expensive to
race". But really you are doing the same thing lapping.
I will admit it gets a bit pricey when you want to win
and every tenth counts. For the majority it's simple consumables
pads oil gas and tires.
In regards to tow vehicles my family hauler is also
My tow wagon so no loss there. There are many options
for affordable trailers.
The bigger question is if you want to... Not being
a competitive person makes me think you should
try solo/time attack. See how this comp suits you. You
might be surprised how competitive you are