There have been quite a few group buys in the past, there have been atleast 2 cleanup crew group buys I've been apart of, 2 oceansmotions group buys (I was part of the first, there's another going on), tunze group buy, seio group buy, think there was a bulb buy at one point (phoenix knockoffs?) and I'm sure I'm missing some others.
But you're right someone has to step up to the plate and take the mantle of responsibility, as well as willing to take the risk if people flake out.
Another problem is how much money are you really going to save, you mentioned carbon, I don't know about you but DR Foster/Smith sells blackdiamond 3.65 liter containers for $14, you're not going to get that much cheaper than that regardless of how much quantity you buy (unless you buy some non-reef brand of carbon then you're really dealing with a crap shoot if it's actually any good! pellet vs. granulated.... lots of threads on this alone). So at this point if you buy "aquarium brand" about all you're going to do is save on shipping, which unless you're a real cheap*** isn't going to be much, I think something like $6 on low weight items and considering the pain associated with having people coming to your house (or going to theres) really makes having the stuff delievered to your house only for you much more appealing.
That's not to say there aren't some uses for group buys, but to be perfectly honest it's something along the lines of "S*** or get off the pot" sitting around waiting for someone else to start one, then complaining really isn't productive at all. You need to know who wants what ("feeler posts") and find out if you can get any sort of deal, etc. But the club itself is not here for the members to get "cheap stuff", too many issues associated with that, the club has in the past gotten some deals with local sponsors, but it's not the club's job (nor should you expect it to be) to procure a bunch of cheap stuff, that being said the club won't prevent you from getting one started just realize it is not going to be "backed" by the club.
Geeeeeeebuz that was one wordy post, that's what I get for replying after waking up from a nap... I tend to ramble, sorry
