You will not be mining much longer then.
Mining for BTC is based only on the value of BTC versus other currencies (e.g., USD, EU, Y...). All the rest is irrelevant.
As for your argument to switch to ASIC, it makes no sense if you are currently running an electricity guzzling GPU rig with a meager GH/s/W.
well your cost of electricity and local climate, and your future expectation of price also come into play so I wouldn't current price is the
only thing you should worry about. Personally I'm much more interested in what the price will be a year from now than what it is today. Good luck guessing that though.