What's a primary value? This sounds like a binary distinction, and I'm always skeptical of binary distinctions.

You could say the badness of the action is proportional to the fraction of your time that you spend doing it. But for that to work, you would assign the action the same bad value per unit time.

Are you saying that wireheading and other forms of fun are no different; and all fun should be pursued in moderation? So spending 1 hour pushing your button is comparable to spending 1 hour attending a concert?