Yes, plenty of use cases -- that's what makes compression so interesting! In my back-of-the-envelope financial analysis, the highest economic impact is when I

Yes, plenty of use cases -- that's what makes compression so interesting! In my back-of-the-envelope financial analysis, the highest economic impact is when I can reduce people's need to wait for data to arrive. There we often use relatively slow compression even when it is for one use only. Computers are quite a lot (~1000x) cheaper than people's time.