Well that's ok then.
I am glad that my taxes are being spent wisely. Don't get me wrong, I am in favour of display teams and the Red Arrows are in my opinion one of the finest teams in the world. But, I don't want to see their allocation of defence spending being used on displays on the fringes of their remit. Of course if the full costs are being covered by the organisers of the private event that is a different story since I, as a taxpayer, would not be funding a charity collection. I would prefer to select my own charity myself (as I do) and would prefer HMG to properly finance hospitals.