Costco has these for $49.99 locally. Their website says $59.99 though so your local Costco may be different. I cut up 10 lbs of bottom round for jerky today and I have to say that a slicer makes it much much easier than doing it by hand with a knife.
http://www.costco.com/Browse/Product...=1&topnav=&s=1
http://www.costco.com/Browse/Product...=1&topnav=&s=1