I was able to get the 3 day pass for $50 online as well.
Make sure you get your hotel room booked. I bought my tickets this past Monday and booked my hotel... there weren't many rooms left anywhere at that point.
I'm looking forward to the show though. I haven't been to it since before Covid hit. It's always a great time talking with others who share the same interest and being able to see and hear gear that can't be found local to you!
Wishing you safe travels and an enjoyable time!
Don