The WSJ often features CEO type exercise programs - Ron Shaich (Panara Bread) is currently featured (it may be behind their paywall). Striking is what he pays (although many of the CEO types are at this level). Probably about $12k a year plus his $25k home gym .. although that is probably a minor expensive for someone like him.
Mr. Shaich pays Mr. Ponomarenko $70 an hour or $750 to $1,000 a month.
His basement home gym includes an elliptical machine, treadmill and weights. He estimates that outfitting the room cost about $25,000.
When he buys his kids their back-to-school clothes, he purchases his workout clothes in bulk at an outlet store, buying oversize shorts that allow for more movement, T-shirts and gym socks, about 15 at a time, for a cost of roughly $975. He buys two pair of Brooks cross-training shoes for $250 every year.
You can do the same or better with a bit of research and almost nothing in equipment... The largest costs are time and motivation. I probably spent about $300 a year on expendible kit (shoes and so on) ... there is an $800 rowing machine that has lasted over 20 years with about $100 in spare parts over the period.