Should OnePlus3 owners upgrade to the OnePlus 5T?

Yes, the upgraded OnePlus 5T is indeed out barely five months after OnePlus launched their flagship OnePlus 5. Understandably, that left a few OnePlus 5 users miffed since the new phone offered better features at exactly the same price. 
While it makes no sense for OnePlus 5 users to upgrade, things aren't that simple when it comes to OnePlus 3 owners now. 

I, having resisted the first two flash sales finally succumbed to the temptation and did indeed buy the OnePlus 5T whic...