I use them more often than not. I am looking at my closet now and one of my Coach bags is sitting there rather naked...this thread is reminding me that I need to cover it. My Burberry and LV bags are nicely covered and stored away in their protective bags.
I do use my dust bags but I don't stuff the bag and I'm starting to notice some of my structured bags (ie Chanel jumbo) are starting to lose its shape.
I stuff and store my bags in their dustbag. It just avoids them from getting in contact with say hairspray or perfume or the air conditioning. I have this fear that the metal hardware will start to oxidize if it's exposed out in the air all the time. Might sound strange but it's the OCD in me.
I am really bad at using the dust bags, I always promise myself that I will get better at it, but this never seems to happen. So truth be told: I only use dustbags occasionally.
I keep all of my bag in the closet without the dustbag. Overheard coach sales assistant telling the other customers that some type of leather can cling to spunbond polypropylene type of dustbag
I never use dustbags and all my bags are always on display, decorating the bedroom.
Though I am starting to worry about them. Maybe I will use a dustbag in the future.