The two biggest obstacles to owning a home gym are size and price. An easy solution to this is a Vertical Knee Raise with lat option such as the Body Solid FCD. Most of these units cost under 500 dollars and take up a minimal amount of space in your home. But, they also allow for a great upper body workout using your body weight for pull ups for your back and biceps, dips for your chest and triceps and vertical knee raises for your abs. Check out all of our great Vertical Knee Raise gyms at: 

www.fitnesszone.com/product/stamina-x-fortress-power-tower-50-1755.html