Yes, at least in my experience. There are many who expect updates and new features because they have already invested so much of their time into your free app.
You can make the argument that a certain price point justifies free upgrades within a certain period of time or to a certain level (e.g. buy 1.x and get free up to all 2.n versions), but "I spend a lot of time in your app" is not a valid reason to get more of it for free.
