Same. I bought all of the first-wave heroes and 4-5 of the villains. Of course, before that I bought all the stars. Because I was 10, had money to spend, and enjoyed playing with them. I continued to kinda keep up with them, but I only have a few (if any) of each wave after.
Nowadays, I'm certainly sad that it happened, and would take Bionicle over Hero Factory any day. However, I will say that Hero Factory did a good job of pushing CCBS forward.
I still really wish they had done parts packs, though. That was one of the best things about early G1 Bionicle, and it would have fit so well with both HF and G2. (BTW I'll say here that I am repeating some of what Logan McOwen has said. Recently read through some of his Tumblr posts and I agree with him mostly.)