Should i invest in a demo reel?

I have always had an interest in doing voice overs particularly in animation and I wanted to know if It is worth the investment to purchase coaching for a demo reel. I noticed that I rarely see voiceover actors who put in the work and time to train getting big roles from auditions and these roles are almost always given to singers and other celebrities. I am based in Canada and want to know if its worth the investment based on the market here.