I'd love to get an agent, but I'm not sure if/when I'll ever get to that point. I'm not super great at self promotion (I only have 40 odd twitter followers and I doubt any of them are real people), so I'm not in any danger of going viral. If I did decide to self publish, it would have to be at a point where my writing is good enough that I won't look back on it in a year and hate myself for putting it out there. Because of how difficult (insurmountable) the goal of getting published feels sometimes, I'm going to stick with writing what I want to write and trying to be damn good at it.
On the other hand, I think over saturation is just a thing that exists in our world today. On top of writing, I compose music. If you want to talk about massive amounts of static getting in the way, THAT is the world to talk about. Not to cheapen what's happening with self publishing, but with distribution mediums like youtube, soundlcoud, and even itunes, self production of music has already done to that industry what self publishing is doing to writing. For the most part, major record companies will only sign artists that have the potential to go platinum (many of whom are of questionable talent), while everyone else is stuck picking apart whatever is left. In some genres that is completely doable because the listeners look for artists outside of the mainstream, but for any normal genres (rock, pop, etc), you're up the creek if you don't sign with a major label.
For me, this is part of the reason why being creative can be so frustrating. I love writing and composing music, but sometimes it feels like I'm just screaming into the wind. ((Though, to a degree, this is much more pronounced with music than writing. I've always had to try so much harder when making music because my talent level isn't up to par with a lot of other musicians. My writing isn't there yet, but I'm still at a point where I feel like I'm growing with each chapter I put to paper. Regardless of whether I'm publishing, I still feel like each word is a small victory.)) At the end of the day, it all comes down to a mixture of skill, luck, and perseverance. I do believe that I'll get published, but I have no doubt that the process is going to be a long one.