I get tossing orchids as well when they're far gone, especially if it's an actual ailment - like pests, fungus, bacteria, viruses, etc. - however I completely understand wanting to try your hand at saving them. There's real satisfaction in that achievement, especially if you're a nerd (like me
). If it does hinder the care you put into your other orchids than toss it. I've got a NoID right now that suffered crown rot, there's basically nothing left of the plant EXCEPT roots, lots of good ones. I'm keeping it just to see what happens; I'll love to add this experience to my knowledge. It doesn't get in my way with anything else so why not?
Given the condition of its roots it appears the leaves are simply a result of under-watering. So if you do decide to try and save it, make sure you water it on time. I would advise not to let it dry out completely for a bit, but do let it dry, make sense? Get a small tray and put some pebbles - like decorative glass beads or decorative pebble mixes even - in the bottom so their are no roots just sitting IN the water. Then keep water in the tray I'd say starting not immediately after watering but a couple days. This will help humidity for that plant. Good luck, keep us posted.