Why does Tim Allen make movies?

I think I'm going to ask Mick LaSalle. Not because I think he'll know but he might have a funny answer. So I emailed:

"Why does Tim Allen make movies? Out of fairness, I haven't seen any of them. I've only seen about 2 episodes of Home Improvement. He was great as Buzz Lightyear and I hear Galaxy Quest is funny.
But I just don't get why anyone would see, say, Jungle 2 Jungle or The Santa Clause.
If I were to rent one of his movies, what should I start with?"

I can't believe there's a Santa Clause Part 3 movie coming out. I didn't even know there was a Part 2! I just don't get the appeal and the trailers for his movies are just lost on me.