The weighing though is "and extra hour per 5 hours driven, cost of a rental, savings using an EV (time and money) the other 99% of the time".

For example, my boss, who has a 1.5 hour driving commute, refuses to get an EV because he drives a 750mi road trip once a year. In order to avoid spending an extra 3 hours for this road trip, he shoulders all the additional gas costs (and many more than 3 hours spent driving to and sitting at gas stations annually) and then service costs of owning a gas car on top.

The guy is trading $2500+ a year and 20 hours a year fueling, to save 3 hrs on a single road trip. Totally illogical.

It is a reasonable bet that your boss has a "wife" who is also driving a car every day. Which is to say they could have an EV for the closer trips and whoever really is doing the long trip that day can get the gas car. Or a PHEV works well in this situation, my wife has that and it saves more than $200/month in gas since we now only fill 1/month.