I have found a few discussion searching through hot, but not any really good threads. I want to keg...bad! What is really the difference between the two? Why is one better than the other? All i ever hear is ball locks are the best. I found a deal on some pin locks for $20 and am wondering if I should go for it, or wait for some ball locks. A brewery uses them. They are getting rid of them to put in some sankes. If $20 is a good price what is market value if I wanted to get extra to sell?