Best Buy has the G5 for $1 with a 2-year extension. Sale ended, disregard. The same drama surrounding root and BL unlock as we went through with the G3 launch is currently playing out again with people offering bounties and getting in fights and taking their balls and going home. Gave me a lot of bad flashbacks. There are partial methods that have been released and then recalled, for valid reasons, but there are lots of jerks that are trying to bait the devs into releasing something... It's a clusterjam.
The HTC 10 is already BL unlocked via Sunshine (paid app) and if it wasn't $200 I'd already have one.
If the G5 gets rooted and I can still get it for $1 I'll go that way. Now that it's back up to $149 I see no benefit to the G5. I got one for my wife and it's nice but if there's no public root method by the time I'm shopping I won't give it a second glance. I know this is off-topic, so sorry.
Rooting is a whole new game now with MM and the encryption on different partitions, and phone makers are less likely to make easy BL unlocks now that Android Pay is a thing.
So, rooting is not necessarily ending, but custom ROMs and recoveries (requires BL unlock) are more likely to fall by the wayside. Time will tell. It's a tenuous game with devs on edge, lay users demanding immediate results, and tempers and egos running hot on all sides. Maybe Pangu will open an Android division and shift the conversation.