The cost to engage in a raid are unfairly too high for small guilds. Some of the larger guilds, while "open", are clearly exclusive and I've personally been kicked off even though I contributed. So I started my own, but since I created it months ago, I've had less than 5 people. We have yet to reach the minimum 30,000 needed to before even the easiest raid. And because this is such a slow process, members leave, making it even more difficult. Developers should lower the requirements for performing a guild raid.