I actually have no real issue with this as I always think all the bottles are such a waste, especially if you think how many get used worldwide.

I think ones that are fixed and cant just be opened easily by anyone would safe guard some of peoples worries. Also if you take that line of thought well a couple of sheets on a bed actually protects you from very little in real terms or are the actual pillows changed when you get a room or just the cases? The point being there are all ways to look at what is sanitary and what is not, but done right dispensers actually can be very handy to use if mounted in the correct place as it saves hunting round for the bottle etc!

When you wash your hands at a lounge in an airport do you use soap and if so most of those are dispensers. I guess the difference is it may say Molton Brown on the bottle or similar. I have stayed in quite a few luxury properties, Banyan Tree spring to mind who have this type of system and have had for years.