This is the clear advantage but Sony thinks you can pay US$2.5K for this baby.
There will be plenty of lens mounts for you to couple different types of lenses and with that, probably reflects the value for videographers.
You can make money shooting video or commercials with this 4K video device. It might cost a little more to kit it out but you are sure to earn this back. Still photography has lost its shine. Anyone investing in that will have to justify this with a higher price point for their service and this don't bode well for the business.
Video is still in some ways the last bastion of commercial photography. If your gear is going to cost you 6 months to earn back, it's still a better proposition than one that takes 24 months.