This is why I hate seeing people suggest we move to a larger out of town stadium. They are often soulless places and we have no idea how much of a positive impact our central location near to a train station and 15 min walk to one of the best retail centres in the country has on our attendances. A lot has built up around the football stadium because the football stadium is there, would take decades to replace that. I guess they banked on success filling their new stadium, the opposite happened.
Coventry wouldn't be the first club to be brought to their knees by moving to an expensive stadium with far more seats than they need, happened to Darlington too.
I don't think Coventry were even selling out Highfield Road, one of the reasons stated for the need to move was a lack of parking facilities near to the ground. Would surely have been much cheaper and lower risk to build a big multi-story somewhere and run some shuttle buses on a Saturday if it wasn't near the ground, like a football park and ride, would also make revenue all week if in the right location and they could have done some sort of co-ownership deal with NCP. I believe we were looking into something like that at some point (without the shuttle bus, as ours would have been near the ground).