I see that the Duke and Duchess of Suffolk attended a polo event (the Sentebale Cup match) at the Royal Berkshire Polo Club, in order to raise funds for the children of Lesotho who suffer from HIV and AIDS.
The Duchess wore an ensemble costing around £3000.

Why can't these people buy 'normal' clothes? I saw many elegant and pretty dresses for sale for about £200 in our store called Jarrolds in Norwich, when I had a look round their wedding outfits department.

This is an example of delusional thinking. I suppose they congratulate themselves for their efforts for charity, but £3000 would buy all sorts of medication/equipment/clothing etc for an African child in need.
In fact, £3000 would be an absolutely huge sum to my in-laws in Cote d'Ivoire.
They haven't a clue these royals have they?