IT can be a challenge to find a decent set of training equipment. Imagine an entire gym showing up in a small town to help with local physical training. The purpose might be to prepare for sports or to train a recruit to compete in a special sport. The beneficiary might be a celebrity or other high profile person who needs to be able to work out anywhere on the spot. Natural body weight exercises certainly help, but there is no substitute for targeted strength training equipment.
It can also be nice to train out of the equipment and to have a small bathroom to towel off. Imagine jogging for miles and being tailed by a personal trainer who has a rest station attached to his truck. Especially when training in very hot and cold weather, a gym person trainer is a solid solution.