I'll be surprised if it's much over 30,000. We only just scraped that for the Sheffield derby at Bramall lane this season.
The problem is that it's just too easy to get live football piped into your living room or even into the palm of your hand. For some folks, the prospect of shelling out serious money (especially if they have dependants to take to the game), in awful weather, versus staying home, or in the pub, where it's nice and warm and you can watch football for free, is just not attractive.
The more easy the TV companies make it to watch football, the less folks will actually bother going to watch it in person. And, as you know, the TV companies are not just content to put big money behind it and televise one or two games. They have seen the commercial opportunity in making just about all games available and so even more fans have less incentive to go to the game in person. And even worse, they want their "technology" to take out the human elements of applying the rules.
In years to come my friend, you and I, and others like us, won't even be welcome to go and watch our teams play football. Fans will be considered an unnecessary expense, because of all the policing charges and the traffic congestion they cause. What's more important, is that the clubs won't need the fans there in person, because they can make all the money they need to make through the TV companies and merchandising. Even now, half the teams in the Premiership don't need fans to attend games - they make their money elsewhere. This is how it is going to be for most clubs in the top 2 divisions in a few years.
The plan is for all football to be televised so they can charge us to watch it at home. And for those that can't afford to pay to watch it live on TV, there'll be pre-recorded and edited highlights to watch on box sets on Christmas Day.
We will be able to sit back in our armchairs, by the fire, with a few tins and play back the games from a whole season. And as we do that, we can stare at the completely empty terraces and tell our grandchildren that when we were young, people actually used to go and watch the game live. And they'll laugh at us and go..."oh Grandad! Don't be silly!".