Totally agree.
Builders care about the nuts and bolts of a building. Most people just care about whether they can get a decent hot shower, how cold it gets inside at night, or whether the smoke alarm goes off every time they fry onions.
The killer feature of decentralization, I suspect, does not lie in a singular interaction with a user, but (as Mike notes) in harnessing the power of the distributed group to do something amazing.
RPN: OR Trick Treat
Async multithreading: Treat Trick (loop closed) OR (stack trace)