$10 for Castro is too much imo. $5 for Furcal is not a bad price for a low-end SS with some decent potetnial to put up numbers assuming he stays healthy. If you have better options though I would consider them. Castro, Furcal and Chapman are not great keepers in a standarrd 10 tor 12 team league keeping 10 unless you just have no one better. Castro is over-priced. Furcal is injury prone and Chapman is not going to yield you anything in the near term.