Can I vote Yes/Maybe? I really like both sides of the hobby. Yes, freshwater is easier, but there's always the hard to keep fish, like newly discovered imports. At the same time, saltwater is harder, with sometimes easy to keep fish, like the staples of the hobby. I enjoy all aquariums, because beauty is in the eye of the beholder.
A lot of the pros and cons reside in how people think our tanks should look like. But where's the variety in that? If we all had Iwagumis, Dutch, or some other type of tank, where would the spice of life be? This is also present in the saltwater hobby, where SPS (small polyped stony) corals cost a house and a half for a frag because people say that you "want" this coral. Personally, I've never listened to what people tell me to get (with moderation), because if I did that, then they would be other people's tanks, not mine. My dad loves goldfish, and my mom loves dottybacks, but I like tiny nano fish in giant planted aquariums, and drab striped fish in reefs.
There's also been a lot of specializing. Sure, I can have an all carpet tank, or SPS filled tank, but where's the fun in that? I like experimenting, from sticking "background" plants front and center, to making mixed reefs (LPS, softies, and macroalgaes). If the "experts" say that I need this plant for "X" reason, I question, and if I'm not satisfied, I find different ideas from other "experts." The gist of this, is that we may just need to listen to ourselves more, rather than the experts. Sure that SPS/carpet tank is beautiful, but which is prettier, the tank you made to satisfy your preferences, or the one you made to emulate this or that experts tank?
Also, we haven't taken time into consideration yet. I remember reading Dick Mills' 'You and Your Aquarium." As a 5 year old in 2001, that was my bible, because what other books on aquarium keeping were available at my public library...none. I don't know whether this statement is true, but take a look at the freshwater hobby a few years after aquariums were invented. I wonder if they all looked the same because people knew that sticklebacks and sunfish were easy to keep, while tetras and gouramis were impossible. They probably would have looked similar on a regional basis, because if there were even any planted tanks back then, they were probably collected in the local region, not shipped in from south america, southeast asia, or any other exotic places. I bet if we give the saltwater hobby time, then creativity will eventually replace the "keep them alive at all costs" mentality that some people have. Back during the Victorian era (according to Mills), they had very crude oil lamp heaters (or something similar). When modern day heaters first came out, were they not super expensive? I believe the same is happening in the saltwater hobby, as lighting moves from what we knew then (single light fixtures) to what we know now (LED's).
The same with breeding. Back then, did we know how to breed neons, cardinals, and discus? NO! Have we created commercial hatcheries that easily keep pace with our current demand? YES! For now, the saltwater hobby's in trouble, because we haven't been able to propagate fish in captivity. When neons and discus came in, I bet that nobody knew how to breed them. In time, I again, believe that we will find better ways to breed saltwater fish, and who knows? Clownfish may cost .99 USD eventually!