At the end of the day, it'll be performing on the pitch that matters and whilst the club can certainly help, the fans will only return if the product on offer tempts them back. Those that have turned their backs after 15, 20, 25 years have had much worse times than this to endure so merely reducing the games to £10 wouldn't make that much difference short term I don't think.
As you've said yourself, there's more to it than just cost, we need improvement on the pitch, a show from the management that they mean business again and then some bl**dy good offers next Summer !