He's going to be 25 years old at seasons start, so he's still youngish. Soto is a free agent in 2014, and by then Castillo will be 27, and hopefully we'll have a good idea which one we want to move on with. If Castillo has a nice season in Iowa, we might want to consider trading Soto next offseason, depending on what kind of value he has, or else we could try to move one of the 2 this offseason. Catchers tend to take a little longer in the minors than most positions, so being 25 isn't a concern at all for me. As Raisin correctly pointed out, figuring out how much is him and how much is the PCL is the important part.