Stu,
THis does not hold tru in the fitness industry. THE ONLY way you are going to create a massive revenue stream in the fitness industry is to be self employeed. And when you are self employeeed you work for yoruself and when you work for yourself credentials count for nothing and the RESULTS you PRODUCE count for EVERYTHING.
rubbish- it holds equally in the fitness industry. in order to get your first, and early gigs, you need creds.
to obtain and maintain, you need creds..not just clients. ideally you need both.
it doesnt matter anyway- the FI is a joke and the knowledge needed to get clients and obtain certificates is pretty low. the pre-requisites are very low- like "can you read and write?"
so any PT cert is lame if thats your claim to greatness.