It's the same debate as planned obsolescence in manufacturing. You can build something meant to break and need replacing to get repeat business, or you can build the best in the world, charge more, and let your customers pass your goods to their grandchildren. Both are business models that can work. I prefer the second.
People actually believe now that if you do your work too well, you'll run out of customers. No... You'll have more.
Same idea in healthcare.