There's a lot more features in the Pro version these days than were in the old Advanced interface of avast-32. One of the features I found most useful back then, and which is still in Pro, was the ability to define different "tasks" if you often did specific kinds of different scans (a particular folder-tree, for instance).
That way you could simply select, e.g., "Task A" rather than having to totally redefine the scan from scratch if you change it, as you still have to do with the Home version (which I use).