The beauty of the European keyboard festivals (Besides giving yourself a holiday) is that you see virtually all the manufactures and their demonstrators, plus the ability to play them all on one site so you really can compare. (Not forgetting the concerts and various jam sessions that go on throughout)
You should really try to get to one sometime. (If you don’t want to leave the US, there is also the Bill Horn Festival in June each year)
Hope to see some of you over here soon.

Bill