I enjoyed watching someone else play a Katamari game that ended with rolling around the planet picking up monuments. That was fun.

Later, I bought Katamari Damacy, and it doesn't have that aspect. You can't suck up everything on the planet. You can get moderately bigger and pick up objects the size of a car instead of objects the size of a paper clip.

What you're describing just isn't a strength of the original game; it was a strength of the sequels.