Towersey is wonderful. Lovely atmosphere. Excellent stewarding. Loads to do & see. I wouldn't avoid it!!!
Its great value for money considering it runs thursday eve to mon night. You can carry your own beer so that's not a consideration.
How much cheaper are the others?? And anyway, travel costs come into it too.
This thread seems a bit anti-Towersey - which seems unfair to a nice well-run festival that a lot of people return to year after year.