Stair Lifts business. If you're looking for a niche market, selling chair lifts for stairs is a business worth considering. Business Overview Are you searching for a unique and interesting business opportunity that has little competition and the potential to make $100,000 per year or more in profits? If so, perhaps you should consider starting a business that sells and installs specialty stair lift chairs. There are many worldwide manufacturers of stair lifts, so finding a...