I stopped with Leeds and Reading about 7 years ago but I never felt at the time that lineups were insanely good, good or average but it's hindsight at what those bands have become that makes them look better than they are.
Maybe you are listening to the wrong new music. I listen to a lot of new music but none of it really is what is in the new music thread as that's not my taste.
If I recall correctly, when the strokes headlined I was grumbling that they couldnt be a headliner with only one bloody (great) album under their belts.