EJS is crowded, but it is a great time to be in Moab with the vendors, show, raffle, and 1000+ Jeeps, but you can go and ride trails on your own by getting up early and beating the Safari onto the trail. This way you have the best of both worlds, but you have to be flexible.
I have to be in Vegas the week after the Safari, so I'm looking at towing out for EJS, leaving the Jeep, fly home from Vegas, and back for Memorial Day.
Ben, what did you think about the cabin and location? Prefer something else? Hard to beat the price if we had 4 guys per.