100%. I've printed some cool stuff and some stupid stuff, as well as a bunch of functional parts that have improved my life around my house. More importantly it's given me a huge creative outlet to get more and more outlandish with my CAD designs and push my experience limits, which is great because that helps me be a lot more efficient at work.
Financially it was a total waste of money but that doesn't matter when it's a hobby. A hobby with practical marketable skills, and also the ability to let me prototype some independent ideas I've been brewing for a while to maybe sell for some side cash...