What century ago king dreamed of a CD player while listening to his Victrola? TV? FM Radio? Fresh fruit from Chile and New Zealand? Microwave oven? Refrigerator? Air conditioning? MRIs? Cellphones?...
How many kings live in the tropics? Even those would go swimming for “air conditioning”.
Overseas trade was quite active less than (and even more than) a century ago, and that included the ice trade for refrigeration before electronic refrigeration.
Technology availability is not the same as living like royalty; it’s like what the proles were given in Nineteen Eighty-Four to keep them desensitized while the Upper Party lived in true luxury and relative freedom.