So my model S is nearing its 4 year birthday and I'm trying to decide whether or not I should renew my maintenance plan with the 4 year extension. I was wondering if people who have opted not to purchase the plans have generally found the maintenance on their cars to be pretty low, or if they wish they had purchased the extension. Normally this would be kind of a no-brainer (just buy it), but iirc one of the main draws of the Tesla model was that they were charging a lot to make it so that they didn't have to make money off the maintenance of the car (unlike traditional car companies). Indeed, over the last 4 years, I've had a few issues which were not covered under the warranty, but were then marked as "good will" on the invoice, and I believe I haven't been charged for anything at all except for a new nosecone to replace the one that I stupidly broke. So I guess I'm wondering if Tesla service will continue to be as generous after my service plan runs out.