It's a tough question. I will probably sell them once they are worth millions, but only sell half of them
Do miners still pay better than spending that same money on bitcoins though? I don't know...
nope, hense why miners are in a forever lasting loop of upgrading their gear in the hope that they can get a bigger slice of the pie.. much like gamblers forever putting more money on red 15 hoping for that big jackpot to cover their loses.
instead people need to realise, just like the pickaxe miners of gold did. that there are more ways to get gold/bitcoin. they hung up their pickaxes and opened distillaries and saloons to cater to the community and asked for gold in return. less hard work and sweat, but still receiving a regular income.
so set up a shop that has prices 20% higher then cost price of product and keep the 20% in bitcoin and the other 80% goes into restocking products.