Unless you have a low cost SaaS product (monthly credit card billing) Stripe is a pain. If you have anything resembling an enterprise sales process juggling dozens of invoices, discounts, payment terms, etc., becomes a hassle.
Is there an Enterprise Sales ready billing / invoicing solution? We're using Quickbooks - it leaves much to be desired.
You can have an MVP even in enterprise B2B if the problem is very apparent and easy to define, and the MVP is easy to deploy.
I've created an MVP for a B2B product and have success in selling it by making it as easy as possible to deploy. This reduces the amount of stakeholders required to sign off on the product. The key is to be able to deliver value (solve a problem) without a huge man-hour investment on the customers end. After demonstrating value, I can shift the focus to a deeper integration and have more success because I have more people on my side to push it internally.
I guess the US Government / Air-force, and other launch customers paid for the launch since they have active Falcon Heavy contracts with SpaceX. This test was part of the certification process.
I'm pretty sure that Tesla didn't pay anything for the advertising. It was Elon's own Roadster. If you look closely, the Tesla logo wasn't included in the Falcon Heavy launch promotional video: https://www.youtube.com/watch?v=Tk338VXcb24
Just got word from a friend that all SpaceX employee names are etched on the Tesla roadster. So either they will orbit indefinitely around the sun or blow up spectacularly.
Obviously some creative license was taken. From a marketers perspective this is brilliant. Never seen something so well done from an aerospace company (even NASA) and the cross-marketing with Tesla is a great touch.
From what I understand it won't reach or orbit Mars (not in a current transfer window). It will attempt an approximate Mars-like Hohmann transfer orbit and continue orbiting around the Sun indefinitely.
Would be interesting to see what still needs to be solved for multi-year stays.