My horses have had local (western washington) grass hay for the last year and timothy about 8 months before that, and before that they have always got the better quality eastern washington grass hay. They aren't doing so well on the local hay anymore (a little ribby) so I was thinking I should switch them back to eastern WA grass or timothy. Problem is I am having a hard time convincing my dad that the more expensive (250ish a ton) hay is a better deal then the cheaper (200ish a ton) hay because I have to feed less of the more expensive stuff. What is your opinion on this? Feed more of lower quality, cheaper hay, or feed less of higher quality, more expensive hay?