I believe the issue was he used it to go to a pub.
Which is what they say makes it an extravagant expense.
Royal Train isn't franchised so isn't committed to paying the
DfT» a premium of ^1.13 billion during the franchise and to delivering a ^200 million investment programme
... or to spending millions on the bidding process or on repainting the trains every couple of years in ever more hideous liveries, or repairing vandalised ticket machines or contributing to
NRE‡, or printing timetable booklets etc etc.
But if the royal train can be run at a cost which seem to be lower than the possible fare-take
from a single journey if
FGW▸ HST▸ -style seats were crammed into each coach and still make
EWS▸ a profit. The amount of revenue generated by the intensively used FGW HSTs every day must be huge. FGW makes a profit, but as a percentage of turnover it is not outrageously high. This is because FGW has much higher costs than the Royal train or freight companies. Some of those costs are unaviodable, and some of them are the fault of FGW, but the vast majority of them are imposed by the industry structure. I can start to believe how the tax-payer support for the railways can be 3 times what is was before privatisation despite only modest passenger improvements and massive fare increases.
It pains me that the freight companies or rail-tour operators can make a profit despite charging much lower "fares" than the passenger
TOCs▸ and despite investing huge amounts of money in new trains, whilst the passenger TOCs are addicted to huge amounts of money from either the taxpayer or the farebox.