Good chance if you like to work out and you're a Millennial or just really like to work out... you'll spend about $112,000 in your lifetime on working out. More than college for most. I say it's worth it! If the average for public college is $98,000 in four years... $112,000 in your lifetime doesn't seem atrocious. PLUS... think about all the health bills you're potentially saving yourself if you keep up on your fitness!
The breakdown is about $155 per month between gym memberships, work out clothes, trainers, supplements, and healthy eating plans. More info here.