The real constraint
You do not have a lead problem. You have a Tuesday problem.
Fitness leads are among the cheapest in any local vertical, and most
operators can buy more of them tomorrow. The trouble is what happens
next: the enquiry arrives at 8:40pm, the front desk sees it at 10am,
and by then the person has already walked into the studio that texted
back in ninety seconds.
Then there is the second leak. Free-trial and intro-offer attendees
get one follow-up, maybe two, from whoever remembers. Nobody is
systematically working the people who came once and did not come back
— even though they are by far the warmest audience the business has.
Fixing both is cheaper than buying more traffic, and it makes the
traffic you already buy worth more.