I haven't played Minecraft in a while. Usually all the servers I would play on would die out after a while because we'd all get bored of exploring and whatnot for the things we wanted. Single player usually isn't that fun either, tbh. I always enjoyed Minecraft with friends. xD
Last time I did play though, it was with a few friends. Server ended up falling apart as people got salty over stuff, and we ended up disbanding it because too many people wanted too many different things and it just wasn't working out.