I think you should FIRST try very hard to find efficient speakers you really want, without even listening to inefficent speakers. Don’t even look sideways at them.
Next: listen to whatever appeals to you, even if low efficiency, KNOWING, power needs will go up accordingly.
So, find a low efficiency speaker you truly want? The best efficent ones you found would be a true compromise?
Forget compromise if you can afford it.
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IF the difference is slight, then think long: efficient = less power needed = same benefits as listed below, but now also easier to try tubes= less cost; less heat; smaller; easier placement .... add all those benefits to the speakers, combined a great sounding choice? If tubes, less tubes, less replacement/rolling cost ....