I still can't wrap my head around the idea of either/or for BLE/NFC.
i always fantasized that all my devices (i'm talking shit like my dishwasher, fridge, lawnmower etc) would be laden with sensors, but would have no screen, and I could interface with them by going up and tapping my phone on it.
Basically, nothing would have buttons anymore, and your phone would provide the interface. I walk up to my washing machine, but i clothes in, tap the phone, the interface comes up where i select my wash cycle and all that fancy shit, and then i walk away and my phone alerts me when it's done. Another benefit of your phone as the interface is that you can upgrade the ui/software (and maybe firmware) in appliances that today would require a complete computer replacement and new set of buttons and knobs and whatnot from the maytag guy.
It's like chromecast, but for your washing machine.
But really, it's even more valuable when it's stuff you don't own. Got a presentation in someone elses office? walk up to the projector and tap your phone on it. Bam. Paired.
Need to print something off your phone at a friend's house? walk up and tap your phone on the printer. Bam. Printed.
Need to split the check at dinner? tap your phone on the table, a list of all the crap you had comes up, and you check off what was yours and pay for it. Bam. (paid for by Emeril).
All of this can be accomplished with some combination of NFC/BLE or both. Someone just needs to make my dream a reality.