We used to go up to Isle of Arran (still do) and there was a lot of music going on which we really enjoyed. It's nice to go into a session where there are more clarsachs, fiddles and pipes than guitars.
Then one year we went up and there was NO music. We did get together with some people but we asked what had happened. And they said that they had just run out of steam playing week in week out with the same people...
Last time we were there (two years ago) it was more back to what it was and there were things going on (with a lot of the same people) but the brief break had been good I think. Going up next month probably but it won't all be open when we go so it'll be a bit barren apart from meeting people on an ad hoc basis outside.