I think this comment is spot on. I don't need a lot of range beyond 150ish miles when towing the boat, but the problem for me is that in almost any direction I go, I have mountain passes to contend with when getting there. Sometimes its mountain passes and 10 mile long grades at 4%. Now that range really becomes critical. I looked the other day, and on one of the main mountain pass routes, there are charging stations on each side, but they're only rated at 50kW speed. That's a tougher sell. I may only be in my trip for 80 miles (after going over the pass) and I need to stop to charge, and it's the lowest end common denominator charger available. But, it's still exciting technology. I'm hoping I'll be in the sooner rather than later camp.You're right that there's huge variation among use cases. Some will just be going 50 miles round trip all the time. Some want to drive across the country. Everyone has to look at their specific use case, like you said.
The problem is that it's not going to go 300 miles when towing. Maybe 100 miles. Maybe 150 miles. We don't know, so it's hard to accurately "pre-think" how it's going to work for a specific use case.
There are some use cases that we know will be fine (<100 miles round trip towing).
There are some use cases that we know will be difficult (cross country, driving >100 miles into charging "wilderness").
There's a LOT of gray area in between that's hard to model at this point.
Also, for what it's worth, it's not going to cost $15 per charge on the road... at least not at fast chargers. You're going to pay ~$0.30/kWh and more like ~$40/charge if it's at a fast charger.
What I think would be really cool is if the Lightening finds it's way on to some car rental lots. I could totally see renting one for a 3-day weekend and taking the boat to one of our fishing spots and just see what it would be like. A learning experience, I'm sure. I think I'd have to "try before I buy" on this first generation. I can't see myself investing in the first generation without knowing how it will perform in the areas that I need for family fun travel. I already know it will rock for commuting and all the other areas, but the recreation aspect is going to be a question mark until we see real world experiences and not paper estimations.