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I have a 6+ 64gb, and I only preordered the 6S (no plus) because I want to downsize. Otherwise, I would have just kept my 6+, and wait for 7+. The "upgrade" from 6+ to 6S+ is not that big deal to me. I never felt any lag or issue on my 6+ that other reported.

That 6s is going to be wickedly fast compared to your 6+. Aside from the CPU/GPU upgrades, rendering everything at a lower resolution and not having to constantly downsample will make a world of difference.
 
For me I'm not upgrading my 64GB Plus. Very satisfied and not interested in dropping hundreds just to get a new device sooner.

Definitely can afford the new device but also definitely have a problem with throwing cash around just to say I've got the latest and greatest.
 
Said I wasn't going to do it but I did. Watching all these YouTube videos changed my mind. I just ordered my iPhone 6s Plus 128 GB Space Gray. Once I get it my 6 Plus 128 GB will be going on Craig's list.
 
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