Is S90-S100 still relevant?

Very well done! Excellent pictures too. I think you made your case pretty well. Your point about the concert was perhaps even more important than the point about macro shots. For instance, I keep an SD4000 in my pocket almost every day, even at work. The shots I take with it could not be taken with a G1-X because I would never be able to carry that kind of camera with me all day!

There are times when you can carry a big camera, and there are times when you can't. The S100 (and other compacts) are there for the times when you can't.