I get what your saying, thats why I want to go with the session. Hopefully I can get a Rebel soon, but I can't hang that from the GoPro mount on my windshield.
Only problem with a Session is no removable battery. If you can run power to it, I believe that's an option. Otherwise, when it's out of juice, you've lost the camera until it's recharged.
You could get a cheaper Chinese knock-off with replaceable batteries. You'll still get decent video (from what I hear) and they cost a lot less money. Plus, if you go with a cheaper model and break it, it's virtually disposable anyway.
As for video and photos, depends on your needs and skill. But I bought a Panasonic Lumix G7 last winter for $500 bucks. Shoots great video but the stabilization is only OK. Takes good pictures too. Not as small as a point and shoot but not as big as a DLSR. Has interchangeable lenses too. The kit 14-42 lens is perfect for vlog style video. Unfortunately, they are up to about $800 now. The newer version, G85 is a grand and an amateur probably couldn't get any more use out of a Canon 80D. Plus it's weather sealed and has better IS than the G7.
In any case, I use the G7 almost exclusively for most of my vlog footage. Added a Rode Video Mic GO and a GorillaPod. Love it. For photos, iPhone or when I'm serious, my Canon T2i. G7 takes nice stills but prefer to leave it in video mode.