I'd say the £7.5m is more than fair given the value compared to the rest of the league, even more so when compared against the main shirt sponsors of other clubs. They currently have a far smaller global brand than the big 6 so at most you would expect £20m, possibly £25m if the PL allow a little pisstaking like they have with the sleev sponsor.
:edit: I keep bleating on about global brand etc so did a quick google and found this. As you can see, the big 6 (split into 2 groups of 3) have a huge brand value when compared to the also rans in the Premier League. The purple ones are Premier League teams and the Mags are the black one as this is the graph from page .
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The Brand Value Ranking has NUFC in 23rd up from 26th last year and the Brand Strength Index Ranking is up from 28th to 26th. Has this Brand Strength climb been to interest in NUFC's owners since the Saudis took over, though obviously not all positive attention. The Brand Enterprise Value Ranking (cost to buy the club), NUFC have dropped from 23rd to 31st. Even the lowest of of the big 6, who are Arsenal, are around €793m is nearly 4 times the value of NUFC who are less than €200m.
This is the 2019 info showing the Brand Value up against the Sponsorship amounts from Page 44 & 45
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. I know it's 2019 but even a generous €30m (£25m), above the dotted line along with Spurs, Arsenal & Chelsea, would be around around €600m (£500m) Brand Value which is triple what NUFC are.
I still reckon the gap is simply too big to bridge even with dodgy inflated sponsor deals and other fiddling revenue income for NUFC. Are they even going to throw £100's millions at them over the coming seasons? At best I reckon they'll get past West Ham but won't get past Inter or catch Arsenal. That is obviously dependant on them getting up the table and challenging for Europe but if that doesn't happen will the Saudis still push for it or just move onto summit else?
Though I reckon there's a good chance they'd be invited into a European Super League but that may still depend on how NUFC do over the coming seasons because West Ham might even improve, who knows? This would obviously be a huge money spinner for the Saudis if NUFC did get into the ESL. One league instead of the five European ones means the split global audience will be combined into one and the money involved will probably be even bigger than any team gets in their own league.
I know PIF are pumping all that money into golf but are they trying to become the main competition which in time will pay dividends? They can't create an ESL as such so the next best thing is to try and be part of it given it's likely to happen one day.