If It’s as good as astrobot then I don’t think 10bucks is all that crazy either.

... is not in agreement with

If the only point is to advertise the functionality of the console, charging any sort of money for it is not productive for what it should be achieving

...and it doesn't look like a contrapositive either.

Astrobot is actually a fully-fledged standalone game, in which the PS5's features are seamlessly baked into the core of the gameplay, rather than the core of the game being just the PS5 functionalities. The only other game I could think of and one you could compare it to more accurately is Tearaway (back when it was a PS Vita exclusive), because that was also a game that made use of every core functionality the console for that game had to offer.

The Welcome Tour is literally just PS Vita's Welcome Park but with a few more mini games, the latter of which is free.