When you consider a Stair Chair Lift, your interest in these things fall under two categories, basically. On the one hand, you have quality of life. You can make it up the stairs; it’s just sort of a pain (literally) to do so on a daily basis, numerous times a day. You’re able to get up the stairs, but your joints and somehow your bones ache, and some days it’s just unbearable. When you start to forgo sleeping in your room upstairs, and opting for the couch instead, because the pain is just too great, then you start to drift into this second category. The second category is something of a medical necessity. You cannot get, or it’s almost impossible for you to get upstairs without this device installed. You might have had a critical accident, and you might be confined to a wheel chair. In this case, this would be a medical necessity for accessing this upper part of the house.