Ive had a title in my Queue for 2 months now and it still says High Demand. I totally agree, they should be buying copies ASAP which would be killing 2 birds with one stone.
Sent, yeah, it's not perfect yet but I'm feeling good about the overall progress service wise.
I've had about 6 titles listed as "On Order", but within the last two months or so, 4 have dropped off that list and are now in my queue. The other two have been on order forever. Must have something to do with availability...just a guess.