Saving Colostrum before birth---? FTM

So my dr told me that I was safe to try pumping for 10-15 min each side to try and induce labor, I have been leaking colostrum for about a month now so when I pumped I got about an oz worth of colostrum and naturally dumped it out because my baby hasn't been born yet (I plan on exclusively breastfeeding) well when I told my friend I dumped it out she told me I shouldn't dump it out because it's "liquid gold" - so my question is what is the purpose of saving it, and should I bag it and freeze it??