Mirrorless cameras now have much better low light through the viewfinder than a DSLR. A viewfinder is limited to around f/2.8, while a mirorless evf can do any

Mirrorless cameras now have much better low light through the viewfinder than a DSLR. A viewfinder is limited to around f/2.8, while a mirorless evf can do any aperture your lens can. The sensor of the camera has around 3-4x the sensitivity of your eyes. So we're at the point where even running the sensor at a fourth of its capacity and binning or throwing out pixels, at 120fps, is going to be better in low light than an ovf. Lag is an issue, yes. But the 20-30ms latency EVFs now have is really really close to the blackout lag of a DSLR. As far as Sony having no incentive to make you buy a camera, I don't think that's true. They're making at most a 1$ profit on smartphone sensors, and certainly around a 50$ profit on large sensors. If you buy their cameras, they're going to make something like 100-200$ in profit, and if you buy a lineup of their lenses, it's going to be somewhere like a 1000$ profit. So they definitely want you to make more cameras! As far as photos being seamlessly transferred, new Sony cameras do have that. As soon as you start the app, it will transfer images you take in the background, but I don't know if it works with RAW images.