This week my 2018 built Kona had its third annual service. Cost NZ$250 (US$175) of which 25% was a pollen filter, and was the same as last year. I was told that I wasn't using the brakes much and that all in good condition, so I'm happy with that. Adding a wheel alignment and tyre rotation every 10k kms or so, the total servicing costs are really low. I did replace the Nexens with Bridgestone Ecopias, which are wearing well. The car was out of action for four months waiting for its new battery and that I hope was a one-off not to be repeated event. So three years on and happy to keep the car in the family for a long time.
Great to here about the low maintenance costs. If you want to save a few more bucks, the cabin air filters are available at a fraction of the cost and literally take 2 minutes to replace, I bought 4 spares so I am good for a while yet: https://insideevsforum.com/community/index.php?threads/cabin-filter.8063/
Thank you @electriceddy for the tip. I ordered four filters from Rock Auto last week— the process was super easy, the price was right, and the filter fits great. Much appreciated!