I've had the opportunity in the past to look through a couple of C11's and at least one 10" Meade SCT. Being a big fan of Celestron's 8" SCT's, I was pretty much in awe of these bigger scopes. This is what started the search that ended with my purchase of a 12" Meade OTA. At the time, I was looking for a bigger OTA for use with my Vixen Saturn mount. In hindsight, a C11 would probably have been just as nice and less of a chore to setup, but the Meade is spectacular when conditions permit. I have seen the Encke Gap with this scope on at least two occasions, but I've also spotted it with my C8 on a couple of occasions as well. On one of these occasions, I had both scopes setup side-by-side and was able to verify that what I was seeing in the C8 was actually the Encke Gap after viewing it as well with the Meade. As I recall, the gap was fleeting and rather difficult to spot when viewed through the C8, while being very steady and finely etched as seen in the Meade. Of course, this required nights where close to 600x was possible, and while that's pushing the limits of the C8 pretty hard, that's just coasting with the 12" Meade.
I can only imagine what a C14 might be capable of. At this point, the 14" SCT is outside my budget, both monetarily and physically. Still, I have the satisfaction of owning a 12" Meade SCT. I will admit that I have thought on a few occasions of parting with this beast since I don't get it out that often. Still, it's not eating anything and is available whenever I have the time and ambition to get it out under the stars. I would dearly love a permanent mount, but that's pretty much an impossibility in my current location.
All that being said, I think the biggest reason I still own the scope is so I don't have those moments of regret that come from parting with something I should have never let go. Just this weekend, I had the Meade out to take a look at Jupiter and Saturn. Although the seeing was very good, the smoke and haze limited my magnification to about 300x. Still, I felt compelled to call my wife and granddaughter out to take a look as well. I could pretty much hear their jaws hitting the ground when viewing Saturn. They both finally decided that the image reminded them of the glow in the dark stickers my granddaughter has pasted on her wall - very beautiful, but rather surreal. And, I have to admit that even though I've seen Saturn at least a zillion times, I got goosebumps as well.