This is the point, yes! Toy software is not production-worthy. It might not even be sufficient for your own personal use. It's about building proof of concepts and rapidly scouting out the terrain of a field you don't know much about, and getting a souvenir to remember the experience with.

Oftentimes I find that I enjoy one of the projects so much that I take it further than 'toy', but that usually ups the time estimate by an order of magnitude.