The fiat price is a good gauge for the purchasing power of your bitcoin in goods and services.  The reality is that money has no value until you spend it.  Will I "cash out", in other words trade my bitcoin for fiat?  No of course not.  But there are certainly level of bitcoin's purchasing power where I will trade it to brings things into my life and the lives of those I love that will make their lives better. 

 I like that - "of those I love that will make their lives better." - thanks!