Amsterdam will be fine for me
Actually, any European city with good flight connections will be fine for me
What I fear is that it might happened the same with the KTGC tour, I bought tickets for the first show in Amsterdam, but as I wanted to do some turism, I arranged it to arrive one day before... Then another show was added THE DAY BEFORE!, so I had tickets for the second show in the end!!!! Luckily I made that plans, so I bought tickets for the new first show, and I attented two concerts there...
My fear is that I might not be so lucky again