It seems to me that for most younger people coming into the hobby that setting and managing realistic expectations is the most difficult part of attracting and keeping newcomers. They're grown up with Hubble and other images and they're expecting large, colorful detailed images. Heck, they figure if they're going to spend a couple of grand on a telescope images ought to look a lot better than what they can see on the net or why bother?
I think it's important to explain to newcomers that most objects are going to be faint and vague through most amateur gear, that with luck and dedication details can be teased out, but that the most important part of seeing many objects is the proverbial "averted imagination" fueled by knowing and understanding what you're really looking at. Very few extrasolar objects are visually stunning through typical gear under typical skies, it's the knowledge and understanding of what's being observed that can make it spectacular.