Not sure why it was so quiet when you went, i go past nearly everyday and its busier than ever. Since we won champs league there are even more tourists hanging around taking pictures and doing the tours.Took my lads to the BMX indoor track the other Saturday. Afterwards we went over to the Etihad and walked all around the ground. Apart from a private bus that pulled up to collect some Chinese tourists from the museum, we were the only people there. Literally had the entire site to ourselves.
One observation that I can chuck in, regarding getting more people to visit the site, it's not that accessible for people on foot to get onto the site, because it is fenced off. If you are in a car, you can drive round to the entrance, but if you're on foot, you have to walk around looking for a way in. We cut in through a gate that was for coaches only, and climbed under some railings. It's not really user friendly like other grounds which are completely open to the public on all sides and you can just walk right up to them from any side.
I know there is a rough housing estate opposite and a big homeless problem, judging by the tents around Asda, but it's a bit much with all the gates and fences keeping people out. I mean, it is working, but people have a vested interest in it not being like a ghost town on a Saturday afternoon during the School holidays.
City had started open the Bluemoon cafe during the day recently as there were so many visitors but that's been ripped down now so could do with a temporary once opening to cater for visitors.
Lots of places to access by foot on both sides of the stadium can even get in from the canal, I do think City could do a lot more to make it more attractive even before the new fans zone is built.