Dude, getting a certificate is worth it if you want to be a personal trainer because it gives you the credentials to get employed, clientele, etc. For some reason fitness centers and people don't care what a persons' physique looks like as long as that person possesses a certificate. Don't ask why it is like that. But it is worth it in the long run because it could open up doors in different arenas in fitness, which means more opportunities to make more money...