I don't recall seeing anyone in this thread sheepishly admitting, "Yep, that's me, I never drive my cars." I suspect the real reason is quite simple. A lot of early roadsters were bought by extremely wealthy people; people who have so much money that they neither cared that much about the cost of the car in the first place, and they don't care about depreciation either.
As they say, "must be nice."
Clearly the majority of us modern day roadster owners are enthusiasts who bought a used car after, hopefully, most of the deprecation was already taken out of it.
Mine is my personal 'fun car'. It is important to me not to drive too much of the value off of the car, so I gave myself a budget of roughly 5,000 miles a year. I actually have a little spreadsheet where I note the odometer reading every time I take it for a drive.
I assume I won't be driving the car in the winter months, so my monthly mileage budget it 555 miles a month the rest of the year.
In the month of May I was 476 miles over budget, June, 150, and July, 181. For this month I'm still within my budget (largely because Tesla service had it for over a week).
I do tend to drive the car nearly every day, but usually that's just right around town to a restaurant or something. It's when I drive it a long distance to the track or a car show that the miles really add up on me.
I can choose to ignore the budget if I want, but my personal goal was to be able to own the car, drive it for two to three years, and be able to sell it for not much less than I paid for it.
However, my thoughts on this have recently has changed quite a bit. I did not buy the car because I had some kind of hard-on for electric vehicles. I was just looking for a new experience and something rare, but now that I've been driving it for a while, every time I get into an ICE it makes me a little nauseous.
The idea of creating controlled explosions to propel a vehicle now seems to me to be kind of insane; almost barbaric. I didn't expect to feel this way, but the clean, smooth, and immediate acceleration of an EV is hard to go back on.
So, now my thought is I will keep my Roadster until there is an EV convertible sports car to replace it. That seems pretty unlikely to happen though. I don't know of anyone building a drop-top EV sports car in the sub-150k range for a very long time to come.
Now my thinking is that I will just drive the piss out of the Roadster and keep it for a very long time; getting the 3.0 battery upgrade at some point. If, in 7-10 years time Tesla, or someone else, finally produces a new EV roadster that doesn't cost hundreds of thousands of dollars, then maybe I will switch.