If you have purchased them, I kinda doubt that you are debating it at this point
. For anyone else that reads this, I hope that you will just accept that hard work and good nutrition can take you pretty far.
The only thing I would add to this is to know your goals. I read so many young athletes on this site that have some ill-defined "I am gonna get bigger and stronger" (oh, and be a better baseball player), but what they really mean is that they want to be bigger and stronger because they want to look good on the beach.
Nothing wrong with wanting to look good on the beach, or to be a 5-tool shortstop; just be straight with yourself and know why you are training.