[chumbucket]

Some do for casting control. Some have brake blocks which are small cylindrical tubes the slide on one or more rods attached to the end of the spool. Centrifical force pushes the to the outside ring applying very slight pressure. These help with baitcasters to prevent overruns, birds nests, wind knots. Whatever you want to call them. these reels are generally more forgiving for casting plugs any distance. Makes the learning curve a lot easier, and you can tune the reel to any way you like by adding or removing blocks, magnets, or whatever.
We'll make a fisherman out of you yet hammer. ;)