Q. How do we choose home gym machines?

Answer

There is a lot of expensive unused equipment sitting in spare rooms but since people got bored with it and went down to the gym instead so unless absolutely sure of the needs and commitment I would recommend trying option "1" in the gym type list if just getting started with weight training. An aerobic step (like a Reebok step) several sets of dumbbells a fitness ball an adjustable bench including an exercise mat are the bare minimum for achieving weight management general fitness muscle tone and flexibility.