I feel the same way. I want to join ... but ...
We've been on 3 cruises. Participated in the FE all three times. The first and third cruise were great, the second I really wish we hadn't (although there was a secret Mickey exchange for that one that was great fun).
Here was the main difference, and what I'm going to wait and see before I sign up. The second cruise, we had joined the meet late since it was a last minute booking, and the group had previously decided not to split no matter how many cabins joined. There ended up being well over 40 cabins.
That was just too many. It took us three days to deliver gifts. Generally we did one set of adult gifts, one set of kids gifts, and one cabin gift per cabin (for all three cruises).
If there's more than 20 or so cabins, it just becomes a burden IMHO. In that case, I would suggest splitting into 2 groups, a group "A" FE and a group "B" FE, perhaps even one with mainly adults vs mainly families, or something like that.
The two other cruises I went on, the first had about 20 cabins, the third there was a dozen of us DISsers (it was a 3-night cruise, which DISsers don't seem to favor a lot). That was a nice size, everything could be delivered in one day, and it wasn't horrendously expensive. Any more than that and you need a suitcase just for your FEs, then you have a full suitcase going home ... while that sounds fun, with luggage costs these days ...
I think the ideal sized group would be 15 or so cabins.