Are you interested in BTC for the mere fact that the price has been going up since its inception and you think it will enable to make a huge profit or you are interested because you know that the technology behind BTC (blockchain) will change the way the financial world works?
The second part, I am not a slot machine player and Bitcoin with it's magical block chain won't scale
and will be replaced with a block chain that will scale instead of budging it with something like Lightning Network
and trust me you don't want that because it is full of banking hubs
CPU-Wars between miners is a joke and is not need and other coins (Not ETH) can manage without it and they
scale but they implement BC using another number of methods but keep playing the slot machine, never sell and just buy
if you cannot reach a obvious conclusion here.