However to be fair, the outfit can be the least of it. And I disagree that black, navy or grey for funerals is more expensive!
If a wedding is some distance away, adding in overnight accommodation (even a Travelodge ) the present, flights or fares/fuel, taxis to the venue or parking. And of course the present.
Even without the outfit, you can be shelling out £ 100- 200 or more (sometimes much more! )
Of course we want to look our best especially for a family wedding (*those *pictures) but I will admit I have turned down invitations (from people we were not especially close to ) before now because of the overall expense.
The potential expense of Paws funeral worried me before he died, but the local undertakers were so nice and helpful and not ridiculously expensive. We chose the simplest oak coffin, natural fibre linings, a simple but beautiful spray for the top of the coffin made by a semi professional florist friend, bought a plot in the village churchyard and held the wake in the village pub who did all the catering. The DDs put a tab behind the bar and SIL organised the service sheets (and I suppose paid for them too, I forgot to ask!)
In total probably £5000 IMO not huge costs.