They won't sell out all 4,500 tickets, no chance. Being charitable, they might get 2,500 so we'd lose out on 1,000 ticket sales at £23 each. £20,000 ish when you take into account reduced prices for kids. Then because of the aggregation of income (posted above somewhere), we won't see most of it anyway. Not a massive cost compared to the influence on potentially being promoted instead and playing Sheff. Wed. instead of Barrow.
I'd go even further and stick them on the far Lorne Street side of the stand as well.