On all of my collection this one (V. Madame Rattana x V. Kimigayo) is the most huge, fast growing and indeed space hog on my limited growing space. As you can see roots are looped and tied to keep it in manageable size and to prevent it from being damaged and scratched on the floor. You can imagine how tall this Vanda when those roots are not looped.
(Sorry for blurred image. I used my phone camera)
He is now candidate to be re-potted in a bucket with lots of drain hole.