Yes I agree, different words do hold different meanings, and less common words hold less specific meanings, and I love reading well crafted, elegant writing.
I agree with your point. I guess I'm pouring out my hate on "fake crafted elegance". Like the one you mentioned: "using a thesaurus and agonizing over sentence structure" ONLY for the purpose of making it "sound" better. Not to make it sound truer to you, but to make it sound better to the ears.