I use bales at the moment, its our own hay so we know its nice quality and theres no nasty plants in it, just watch its not too dusty. when its £1.50 for a bag, or the same for a bale, i think it must be better to have a bale and pick out the best bits for the bunnies (after all my ponies should be able to live on the bare welsh mountains, they arent to picky about hay). i probably get througha bale a week with 9 guineas and a rabbit, that would cost a fortune in bags.