That would be hoarding. When you refuse to part with it, even to use it yourself, it's hoarding. When you collect beyond your capacity to store and access things, it's hoarding. When the things you treasure are destroyed because you have collected beyond your capacity to store and care for them, that's hoarding. I'll bet that lady's house is also full to near capacity and I'll bet that when she dies all that fabric goes straight to the dump because it'll be nasty with mold and mildew and maybe even mice.
Watch Hoarders on A&E. It's a real eye opener.