Anyone else like me ?
Leveling a toon = fun
Hit 80 have fun gearing up said toon.
Then I hit the 650 ilvl wall and I just get bored. Start lvling up another toon repeat.
Like that 650 wall demotivates me hard to push further. It’s just crest farming at that point. Getting new gear drops decreseases hard. Got three content options that do not interest me to get beyond 650.
Waiting for weekly reset to get an upgrade beyond 650.
I just want to know anyone doing the same me ?
As a delve player i got to 665 which was kinda the limit for delve only players, then they shoved the Hero gear from 6/6 to 8/8 and i thought “seriously is there really any point doing the same delves over and over again just for 5 more iL’s”?
I might work on it when Overcharged delves hit.
They needed a borrowed power system for Delves and more tiers than 11. I can do T11 the moment I hit 80 when I get green explorer gear from AH. There should be a power progression. Delves could imo go up to Tier 20 and cool stuff like that belt would be more fun, if it was here at season launch
As long as rewards scale at least somewhat comparably with difficulty this is always going to be a problem in a game that gets most of its difficulty from the fact you’re playing with other people.
Isn’t this basically the problem with any hobby/activity one focuses on TOO much?
Slowing down leveling and gearing progress could help counter this.
Probably the game just got a tad TOO fast in general, yes also for people who like it fast.
Hm 
I don’t think there is a proper solution for this issue in general other than slowing yourself down or forcing yoruself to try doing something else besides WoW.
Yes, I know that is a somewhat genereic answer, but as I said, I don’t think there will ever be a proper solution for things like this.
PvP
Or start collecting, the true end game.
Dont hit wall, it will hurt fist. Like some said get honor gear from pvp and work towards conquest items and set bonuses from there.
You got to 650 before hitting that wall? 
I am completely demotivated to gear, ever. I just want mogs.