Many forum members seem to be fixated on consistently pointing out that mirrorless cameras can't replace bodies like the 1dx.
"Shoot sports with 1dx, shoot action with 1dx, mirrorless can't ever match 1dx for focusing."
Well, great. Something I'm curious about however, is whether any of the naysayers has stopped to think about all the things that you CAN do with ML that you wouldn't necessarily do with a 1dx?
*hand raised
Okay okay, I'll start. LOL. I used to be one of those naysayers until I actually began using them extensively. Now that I have logged thousands of mirrorless images, my perspective has changed.
1. I can and do take my mirrorless rig everywhere. For those of you with young children, you know this is priceless.
2. Most people never bat an eye at me when my ML rig is either on my hip or slung across my body. When I walked around with a 5d3 + fast prime, many people took notice. Same with my 6D. This used to become an issue often times.
For example, I've been asked to stop operating my DSLR inside of the mall before as it is their "policy" to not allow it. On the other hand, I've since taken my ML rig into that same mall (and other similar venues) with my kids about 2-4 dozen times without issue. I have experienced this same phenomenon in numerous other places.
3. I hold up the ML cam to take a shot using the LCD and silent ES, most people don't even notice I'm taking photos even though I've just run off 20 shots.
Just in the last month, I've taken the ML rig to my daughter's first dental visit, first haircut at the salon, restaurants of all types, the mall, busy parks (with tons of other kids and their parents around), etc. No one has had any issues with my presence with the rig.
Try pulling any of that off with a 1dx and lens. Won't be so much fun even if you can get away with it.
The point I'm trying to make is, so much weight is put on ML not being good for this or that, battery life being bad, EVF sucking, blah blah blah. Most of the niggles are minor in comparison to what they bring to the table for many people like myself. Mirrorless has allowed me to document tons of things that I would not necessarily have been able to with my DSLR rigs. I'm pretty sure that the market niche I am in (dad with wife and two kids), is much larger than the fast action/sport shooter 1dx niche. Because of this, I think that often times, mountains are made out of mole hills when it comes to talking about ML.
For us mere mortals that shoot real life things that most people shoot, ML does perfectly well.