I've had a Kermit chair for two years. I've packed it on a lot of 500/1000/1500/2000 mile rides and I've NEVER used it. The guys I ride with usually rearrange the furniture at the campsite and we use the picnic tables. Oh well.
I hate to sell it because they cost so dammuch, but I think the reality is that I never will use it. The one time I didn't pack it, I coulda used it.