I did a lot of spreadsheeting before I bought my 2014 SR, and I couldn't really justify the purchase price unless I planned on running the bike up into the 60,000 mile neighborhood or beyond...which I DO plan on doing, and I'm getting close to at 48,000. And that was to justify buying the bike by putting fewer miles on my car -- comparing to an ICE motorcycle, it becomes pretty much impossible to make a purely economic rationale for an electric motorcycle. The purchase prices are just too far apart, and the running costs too close together.
Economics isn't what made up my mind. What made up my mind was the test ride. It's been a long time since I had so much fun on a bike. Also, I was willing (and even wanted) to be an early adopter for this technology, to help bring economies of scale to the industry. Some people have to step up and bring the manufacturers up to the scale where they can bring the prices down comparable to ICE machines.
48,000 miles have done nothing to change my position. I've considered springing for a shiny SR/F, or maybe an EsseEsse, but I just can't bring myself to do it. The old girl has worked hard for me, and I know she's got at least another 20,000 in her.