Both Uses

luxurious
in
And Then There Were None
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There had been its original purchase by an American millionaire who was crazy about yachting—and an account of the luxurious modern house he had built on this little island off the Devon coast.†
p. 1.7 *
There had been a time when he had sat in his consulting room in Harley Street, correctly apparelled, surrounded with the most up to date appliances and the most luxurious furnishings and waited—waited through the empty days for his venture to succeed or fail.... Well, it had succeeded!†
p. 11.6

Definitions:

(1) (luxurious)
rich and superior in quality
(2) (meaning too rare to warrant focus)
In archaic literature, luxurious could mean excessively indulgent in sensual pleasures or being lustful.