I use Facebook daily
I post videos of my bootcamp and make announcements/create events etc.I rely on it to keep my name out there. It’s something that has to be maintained constantly.
However, I get all of my business through google searches ,Yelp, word of mouth for my bootcamps.
For my personal training, I don’t have a FB but Fitness Connect has worked very well.
Although FB can be helpful, I don’t use it so much to tell people more about myself, but rather find some interesting information and post it. In other words, it’s not that important to me to grow as a business. Many use FB to let others know about their daily routines and life and to connect with their friends and audience. Trying to measure the success of your business from the number of likes could be deceiving and/or not accurate. So, it comes down as to what is it that you are looking to get out of your FB page. You can always pay the fee FB charges to increase the volume of your audience and reach new potential viewers.
If the actual number of likes is really important to you, you could participate in a “shared like” thread that sometimes happens in fitness groups.
For example, this fb group for group-ex is a big group. Sometimes the fitness professionals there will do posts to trade likes for each others’ pages.
I’ve done it a couple of times, mostly when instructors were my target customers (I used to master train and affiliate for product sales).