Yeah, I'm sure I will always collect. I've spent hundreds of dollars on the old McFarlane stuff, and thousands of dollars on the NECA stuff (with more to be spent with the new Predator figures). With Alien and Predator stuff, money is no object for me, I don't smoke, don't drink and aside from the occasional video game purchase I don't really have any expensive vices to speak of, so I'll always have that extra $20 for "just one more figure..."
Well, okay maybe two.
Or three.
My wife always says "When you get old, you can pass down all of your figures to our kids."
And I say: "Woman, these things are gettin' buried with me!"
(Actually, when I do leave them behind for my future children they could probably make a small fortune selling off just the doubles....)