I use rent-a-bulls every year. Virgin bulls, for $350 a head for a 90 breeding period. I use them as clean up on the heifers after AI, and on my 2nd calvers as clean up. Then they go to the old girls pasture, as I don't AI them. The guy I rent from usually buys 2 pot loads from a good breeder, then after he gathers them all back up, he ships and sells them in Florida. They have had all their shots, are registered, semen tested, poured, and fly tags when I get them. It works great for me, as I don't need to feed a pen of bulls through winter, and I get new bloodlines every year. And if one gets injured, I take him back and trade him in.