vitussl101,
As you said, "When we heard that Gidon Kremer was performing at Orchestra Hall we made a last minute dash to get seats and we did; front row, just left of the center seat. Can't count all the performances I've seen there but it was my first time in the front row and it was fun, to say the least. Drunk and sitting right below Kremer and Barenboim, recliners would have been better suited but we certainly got an in your face performance. It was so loud, rosin and horse hairs were drifting down on us, plus Gidon gets excited and stomps his feet during the performance and even subtle voice cues from Daniel. It was a performance to remember and I'd do it again."
You said it best, better than myself. Your vivid writing style communicates the vivid sound and performer antics. There is nothing like the front row for all that. Rows 5-8 are merely polite dilutions of that. Rows 5-8 are better for balance, but which performance will you remember--in your face excitement, or polite balance? You've been seated further back many times, but THIS ONE you will remember and you will do it again.
Conductors like Solti know they get the most excitement from their stage position on the podium. But they listen further back for different purposes. They want to hear how the large orchestra projects to distant locations, so they can judge how a typical distant listener hears all the instruments. They learn about acoustics and balance of various instrumental groups, so they can modify their conducting approach to suit the thousands of audience members.
A few times I couldn't get front row center, and had to choose extreme right or extreme left. If I got left, then the violin section's backs blocked the sound, and it was veiled. Most soloists are to the left of the conductor, so strictly speaking, my best seat is front row, 1 or 2 seats to the left of center so I will be closest to the soloist.