Dopple, its once they are empty that it becomes a problem.
When restocking, trying to figure out what has been sold out is a problem. If the SDB had names i.e.: meat, or purple cone..etc. then you could see at a glance what is needed to restock. Also your prices would still be there.
Just screencapture a fully configured display unit and use that as photo reference surely, I do that to see which ones I need and keep it in a side window with a basic image viewing package for quick reference.
When restocking, trying to figure out what has been sold out is a problem. If the SDB had names i.e.: meat, or purple cone..etc. then you could see at a glance what is needed to restock. Also your prices would still be there.