I think BlackBerry's move to Android is the best bet. They choose to focus in software product so will not make any handset in-house.
It seems you are Indonesian and easily get a Aurora to test. Do you ever use Aurora in front of you with your hand? Because judging in-absentia is just emotional. How you can say it's imposible Aurora can be smooth as butter if you never try by yourself? [emoji1]
Yes it is expensive when priced Rp3.5 mio. But at Rp2.3 mio it is very competitive with the similar price like to Coolpad Max LT, Galaxy J5, Zenfone 3 Max, or even LG K10 Power. Check yourself. Except, you compare Aurora with Redmi Note 3, yeah...you know Xiaomi is the cheapest. So, if you are realistic, try to compare those handsets.
But I found Aurora is valuable at that price compared to it's 4GB RAM, 2TB SDXC capability, and exceptional BlackBerry softwares like Hub & DTEK. There's enterprise apps from BlackBerry on PlayStore.
I don't mean to overrate Aurora. I have some flagship (at that time) like Nexus 5, and iPhone 5s. It is Nexus 5 faster on app loading, but 4 GB set on Aurora really a game changer.
Nougat on Aurora's SD425 and Marshmallow on Nexus 5's SD800 is just the same touch response and the same smooth scrolling (proofed when I browse any website on Chrome). Remember, processing speed not inline with touch response. Even highest-end Android still lag behind my old iPhone 5s touch response. Smooth scrolling is another different animal, GPU plays role, and Adreno 308 on SD425 really capable to scroll smoothly, say 60fps.