No, you're pretty spot on. It was the overlap of a couple of factors:

1. I wanted solar & batteries as a buffer for grid outages

2. I wanted to be able to offset some of my energy usage with solar

3. I wanted my roof to look nice, and personally I think solar panels strapped onto a roof don't look very appealing.

4. At the time, Tesla was one of the few names in town for an integrated solar roof.

Saving money wasn't really part of the calculus, which worked out because as the article and parallel comments note, getting a Tesla solar roof is a pretty bad decision if one of your primary factors is cost or saving money on your electric bill.