I never really got into Hero Factory. It really annoyed me that they never seemed to leave a certain group of heroes to see another team of heroes with different personalities. And the villains where extremely under-developed, which is a problem with me, because I love the villains.
I don't mean I'm not a fan of the pieces. The way they use it on the new BIONICLE make it looks pretty cool. I mean is that I'm not a fan of the idea of Hero Factory. The way they manufacture heroes instead of a person becoming a hero just didn't stick well with me. I did get interested in it during the Break-Out era, but it quickly faded away after Brain Attack. Never got any of the sets, though, due to me wanting to save up for the computer I'm typing this on right now.
I do plan on getting the new BIONICLE sets, and I do plan on using the Hero Factory pieces on them to MOC with.
As for taking apart sets, I only usually take them apart due to A) Broken Pieces, or B) The desire to MOC with the pieces.