I had seen Saturn many times through my own 10" scope, but the time I climbed an 8 foot ladder at a star party to look at it through the eyepiece of a 20" Dob.....duuuuuude.
Yeah...I had a similar experience with a 30 inch dob on Saturn. So many moons visible that night.
I really liked the Veil Nebula in my friend's 16 dob in a dark sky with an oxygen III filter. Just a weave strands throughout the eyepiece.
I still find the moon to be just magical. My little 80mm apo does a great job on it.