My first "round" of quilts was furnishing the grandchildren with whole cloth/tied quilts. Some of those were made almost 20 years ago and are still in use. Then I went to quillows which are basically the same as the whole cloths but have the added pocket. Next, I began piecing baby quilts for the little ones and tee shirt quilts for myself. In the meantime I began taking classes with BOM projects. Many of those projects remained as UFOs in the closet for many years. This year, I have managed to diminish this stack by a few. Another thing that has come up between projects and grandchildren's quilts are the prayer quilts that I have made for cancer patients.
Graduation quilts for grandchildren have also been a priority at certain times of the year. The quilts that were made for the little ones are now outgrown and it's now time to start over to provide them with bigger quilts. So my point is that there is always a need. And yes, it is an expensive hobby but most hobbies are. I have no intention of selling quilts because first, I wouldn't want that commitment, and secondly, I wouldn't know how much to charge. When someone asks me if I would make them a quilt, I tell them that I would very happily guide them to make one themselves.
Happy quilting.