Rob,
This is a very good thread idea.
It's hard to believe that since I registered my Arntz in 1986, I've been driving it for 24 years. There have been some problems that have kept in off the road for a few months here and there, and one major body-off rebuild that took almost a year. It's on the third engine, the third transmission and the third Jag rearend. I have lost count of the tires. Since I enjoy working on it, it's in a constant state of improvement. I just got a good deal on a Holley 850 Double Pumper that should add a little punch to the new 406 engine.
Santa Monica Sports Car Club puts on a TSD Rally every month that starts in North Hills, CA. The ITN Rally Team usually puts on 3 or 4 Monte Carlo Rallies every year and these are simply the best way to have fun in a Cobra. Going for a drive through the back roads is fun, but going through beautiful scenery on a course laid out for you and having a purpose to find checkpoints adds a whole additional level of fun. Bringing home a trophy adds a little to the excitement level too.
Sometimes I go to car shows and sometimes to an SCCA autocross (Solo 2) and these are fun, but not very challenging (without racing tires).
So, the answer is, I drive my Cobra about twice a month. In a way, it keeps me alive. I'm over 60 now and have to exercise to stay in shape to drive the car. Otherwise, I probably wouldn't bother.
RallySnake