I bought a really heavy duty table saw from Sears when I was in my early 20's, when I still lived at home with my folks. We used it on projects at my parents' house, then I took it with me when I got married, and used it in remodeling our first home. Then it moved with us to our current home and helped with remodeling that. Nowaday, for the most part, it sits in my garage collecting dust and other projects. But when I do use it, well, I have never regretted that purchase. It'll last me a lifetime.
If I were to buy one today, I'd probably look at a bench-top model to save room in the garage, as this one takes up probably 9-10 square feet of floor space at the legs, and 15 feet of floor space at the table height.