becouse almost every speculator pump was becouse of something expanding adaptation.
Google use BTC news / silkroad news / bla bla speculators jump on BTC ship seeing BTC as mass adopted stuff.
If you want see massive surge in price u need provide that or... bank crisis and stolen money from banks(Cyprus) .

I have teory that when BTC miners will get less money than BTC miners now that is about 77%. Then they will rethink why they fail so hard and to cath ETH lighting and such stuf they will need segwit. If not people will value more ETH, use more ETH than BTC.
If they will be stubborn more BTC will fade away like any outdated software win3.11, kaza, AOL,Duke3D...
People will have sentiment but nothing more ...
They have to feel $$$ in inovation not fees thanks to LTC or ETH(most likely) they will feel fear of deafeat IMO.
Even Jihad will be pissed off that BTC minning is no loger such fun as before .
If bitmain will jump ETH then Vitalik will show him middle finger with POS and even more people will hoop ETH trane becouse they hate Jihad
for what he have done to BTC ^^.