You are correct about too many certifications out there. The question you need to be asking is what type of training you want to engage into. I believe that a certification alone is not enough for a trainer to call himself or herself a trainer. You need to have all the other qualities needed to become a successful instructor/trainer such as experience, understanding your clients and your subject and education to back up the things you are talking about.
At the end, you are the one who represents yourself and not the certifications added after your name.