Not to mention the yearly price breaks for continuing to subscribe to their services. I think I pay less than $15 USD a month for their All Products pack, and it's worth every penny. Much more economical than buying every release of Visual Studio.
You're bringing back waves of nostalgia. I used to frequently read AllAPI.net and come up with mischievous implementations for my own amusement. A quick Google Search netted the following project (https://github.com/microsoft/CsWin32). Looks like my evening is gone.
It's also crazy how disparate the values of older guitars are as well. I inherited a pristine 1975 Gibson Les Paul Deluxe Blue Sparkle; one of 250 made. Despite its rarity, it's not a super high demand guitar, so it barely clears 4-5 figures.
You still need to enable the subsystem, but I don't see why most users need it on by default. It seems like an easy enough feature to prompt the user to enable (or enable for them automatically) if your application calls for it.