I disagree with your assertion about "no decent classical recordings", as from my point of view in the audience I think a lot of today's and yesterday's recording engineers and producers do a nice job of recording orchestras, though not necessarily replicating the concert experience. And the engineers do use a good deal of spot miking to bring out different instruments in a mix beyond what you might hear in the hall, if they, the producer and the artist want it.
I see your point of view, though. You might want to get a copy of the Telarc multichannel SACD of the Cincinnati Orchestra's recording with Stravinski's Petrushka, my understanding is that the recording was made more from the conductor's standpoint than from the audience's. Also, DG makes recordings that often spotlight instruments in a way that is not necessarily what you'd hear in a concert hall but what the people making the recording felt was musically appropriate, that might be along the lines you're thinking of.
