This can be very true! Just depends on your perspective. I was recently at a dark site in New Mexico for a week observing. I was using substantially a 6" Apo but would wonder over to the 16", 18", and 20" Dobs that friends had there. The larger apertures obviously could view targets showing more detail/structure and at higher magnifications. But even so, their views were limited in terms of what we know the structures of the objects to be from ground-based and space-based imaging. In the end some of the extra details were casually "interesting" to see, but nothing that I felt was overwhelmingly over the top. One exception was glob cores with the 20" as this aperture had enough pull that when close up in the core there was still enough light to let all the individual star colors come through which was quite enthralling. However, I'm sure glad I didn't have to manage the setup, acclimation, collimation and re-collimation, operation, precarious ladder observing, and breakdown of that monster. So view was nice, but operationally I considered it a complete nightmare. All that being so, went back to and spent the majority of my time with the 6" Apo as its views were beautiful, had greater context since generally worked at lower magnifications to keep the targets bright like the bigger apertures, and operationally it was completely easy-peasy with zero hassles over the course of each evening's observing. I generally stopped observing with a telescope at around 2-3am each evening, then spent the last hour in a lounge chair observing the Milky Way in detail naked eye. In many ways that end of evening observing at the dark site was the most memorable over what any telescope could provide, even the 20". A lot of magic to observe in the sky...more when you have studied up on what you are looking at...and aperture is largely irrelevant IMO to the reward of the experience as any aperture will do. So your best "scopes" for planetary and cluster observing are really your "brain" to know the details of what you are observing before you observe it and your "eyes" to take in all the context of the object. Any aperture scope will due after those two
I don't think you give the human brain enough credit to paint a picture with minimal information. The differences are subtle, yes, but the actual experience is much more then that. Kind of like seeing Star Wars on a 5" black and white compared to IMAX.
Edited by Keith Rivich, 22 August 2018 - 04:33 PM.