I am not concerned about not having anything to show for my free time. I am just not finding interest doing stuff which could indicate something worse.
You are not alone. It's not easy to find an engaging free time activity. And even if you do, you may get bored of it after some time. The only thing I can say is: even if something doesn't seem very interesting at first, give it a try anyway (as long as it doesn't require a huge upfront investment). You may end up liking the activity or you may end up with like-minded people. And the worst case scenario is, you have wasted some time.
I think majority of people suffer from not having a meaningful free time activity (amplified by the possibilities of internet). And I'm saying this without any data to back it up, so don't quote me on that.
If you are thinking about transitioning an organization to open source, pricing and vendor lock-in are generally good arguments.
If you are thinking about helping individuals transition, that's a bit more difficult. Pricing could still work, but is not always that effective. It boils down to the willingness to try something new.
In both cases projects with good documentation and a healthy community also helps, but if the open alternative lacks features, it's a though sell.