Where are you located on the wet side?  I quit feeding my horses and cows alfalfa a few years ago and went to high quality grass hay.  They all get a little grain along with the hay and seem to do as well if not better.  When I did feed alfalfa I bought it at Kipert's in Tumwater.  The second weekend of September they have a big sale and good quality alfalfa that usually goes for $16.99 is on sale for $12.99.  We would buy 5 tons and be done for the winter.  Kipert's has always had better alfalfa than Del's/Tractor supply, Wilco and just about all of the little local guys,  Every now and then they use to get in 3 strand bales that are around 160-180 pounds with super fine stems and leaves as big as red clover.