Well if you want to keep the server going, unless you've got montly extra cash for it to run you'll need donors, and as we all already know not many people donate for no perks, and since you want to keep this simple, there's not so many perks available unless it goes viral and is almost always full, then special slots would be very worth it. But i am not completly sure what you're talking about when you say "MCSG exclusive", since people that don't play MCSG also will play there, around 80-90% players from Swish are also MCSG players, is that what you're talking about?
Look at the date *facepalm*...
