Well, I am not going into my whole philosophy about how a roleplay should be run since I don't think it is the time for that. However, the long and short of it is that I would prefer a smaller more dedicated group over a larger group with little attachment to the rp. I have seen a large RP work before, but that is because it had everyone in much smaller groups of 2 or 3. 

Honestly, at this point I am continuing this RP not out of interest but obligation due to waning interest. And having a large cast is a part of that (The roleplay moves slower both in terms of post-cycles and pacing of the story, and the importance of each individual character is diminished for each member of the group)