Breda Jazz Festival. We used to go over each year, seven of us and all sleep in sleeping bags on the floor of an upstairs room of a pub, the Fruchtvagen. Four inches between each bag and a near-derelict loo upstairs. Until we found the basin cracked one year we used to bring our own sink plug. And, you know, it was a lot of fun.
The last time I went I was with a pro band and we were put up in the best hotel in the city, one to a room with en suite facilities.