Don't think that you have upset anyone by your post, think it's a great idea to do stuff together. I exspect the lack of response is due to;
1. Appathy....there's a lot of it about
or
2. The ticket price.
I can't commit on the 30th at the moment, but if I can nearer the time, will it be ok to russle up a few mates from the Hants region and just turn up on the day?
Roy