What kind of soil are they in? The very tips of the leaves look like they are curling down and kinda yellow. The curling down could be slight over watering(just back off a little bit) and the yellow could be from nutrients if they are in a hot mix. Tell us a little more about what you have going on. What kind of soil, light, temps, humidity, ph of water, how often you water, etc. If you share this info maybe someone can assit you further and make sure your on the right track.
They are definitely worth saving. I don't even know if saving is the right word. They should be fine if your environement is ok and you don't love them to death or overwater/feed/