Some have 100K to spend on a car because we spend money cautiously and some have 100K to spend because they have a lot of money and don't care. Maybe their time is simply worth more and maybe, in my case, it is how I enjoy spending time.
I totally enjoy working on cars and buying the tools (lift) etc to work on them rather than pay others. Many times I have fixed in less than one hour stuff the Porsche dealer would have charged 4+ hours for. Nuts. Sometimes I wonder if the guys here have any training to qualify them over me. Most clearly don't. I can change speark plugs in half the time they can - one of them is a real bear but with the special snap-on wobbler socket extension it is a rewarding job. Cost of tool $30, savings $500-600.
I know the guys in the service area and I frequently inspect their work and correct it when I get home (after I find the rattle etc.). I worked in a machine shop when I was 16 and built engines from bare metal so turning a wrench is childs play. Once you work on these cars a bit you realize the genious that went into making them easy to service (once certain panels are removed). My first repair was replacing the blown air box on my '80 Euro 911 SC after I calmly put the fire out one cold morning.
For the same reason I will always shift the car myself. I know the automatic is faster and simpler to drive - so is a wheel chair compared to walking or running.
In some cases guys like me who buy used (ooops - I am cheap) and do their own work might be a little more enthusiastic and also know a bit more about the quality of the car and how it works.
BTW, my car costs me only $97 per month on a tax deductible home equity line of credit. Plus taxes and insurance of course. so figure less than $200 TOTAL plus gas and tires. If I can save a $400 service now and then I will do it! I drive the same 997 that everyone else does - it just costs less and suits me. Life is too short to waste money on bad investments. Visit me at my family home in Pal, Andorra and you can see what can be done with the extra money.
I barely have time to drive my cars, exchanging oil/oil filters or doing other stuff on the car would actually be very very annoying.
