Or buy more to make the price rise so as to incentivize new miners to come in and crowd out the old ones
Until we get fork arbitrage happening on the exchanges I don't see any way to send an unambiguous signal through the price, barring a major salient event whereas we are likely to get a slow sapping instead which will make price action inscrutable and people will see what they want to see (every action by Core to pin the decline on will induce a reaction by anti-Core factions for Core supporters to pin the decline on - it's a dumb game).
@solex
I take comfort in knowing the worst enemies we can point to are those who say, "The price must go UP." I think Bitcoin is a band of mercenaries and no one gives a rat's ass about Core (or Classic, or BU - except for those few who are close to the projects). They just want the big bucks and are going with whatever seems to be the surest path to that.
For now I can see how going with Core seems the surest path, but it would be a mistake to think that this is due to any stated loyalty to Core and therefore a mistake to think that loyalty to Core would be prioritized endlessly over obvious considerations of Bitcoin's price and success.
How much pain that will take is probably related to how reliable people think Core is compared to the alternatives. I can also easily see how the alternatives look less reliable, despite Core's shortcomings. But as things start to fall apart, even just a little bit, there is not much incentive keeping these mercenary rats from jumping ship (both miners and devs).
As
@Mengerian hinted at above, the very same wishy-washiness miners have shown thus far is why not to take them throwing their support toward Core very seriously.