Not at all since I got tinnitus :(
I never went too much but I enjoyed them from time to time, I tried to go only for bands I really loved and were unmissable (I still can't forgive myself for not going to a Linkin Park concert). Not sure I would enjoy now with all the crowd, plus the rising costs. I would prefer a pub or something similar to stadiums for sure.
Merch is usually super expensive so unless I can't find it anywhere else, not really.