I use York regularly and just about every time i use it there is a queue. I would be surprised if their numbers are down.
Same for Ely - and even more so for Cambridge, which usually has a queue even with 4 or 5 windows open.
How much does keeping ticket offices cost, compared to some of the other costs of running a railway? And how much revenue do they bring in from people who otherwise wouldn't travel?
I know we've done this discussion a hundred times already, but in order to succeed, the railway needs to be attractive to new customers and 'non-expert' customers as well as those of us who know what we're doing. It is very apparent from conversations with colleagues who use the railway infrequently and ask me for ticket advice, that they find trying to get information out of the railway *now* about what tickets they should buy is a highly confusing affair, to the extent that often they are tempted to give up and drive instead (though I usually manage to persuade them to stick with the train). That's not going to be helped with large-scale closures of ticket offices.