Though you are right, but honestly Bitcoin price does matter to everyone! Imagine what will you do if Bitcoin loses its value by all? You will be shocked or will go to frustration! That's why people like to see Bitcoin at a higher price and they stop buying when the price becomes low because they feel afraid of more down! Though I dont care that over-optimistic speculation about 100K,1 Million USD per Bitcoin! But what I believe, Bitcoin will never stop surprising us!
Reaching the ATH may take time to happen again, but it's indeed surprising whenever price increases without exact reason of its increase. Whatever the price is, as long as we were able to trade and earn from it thru our skills, we will not be bother whether the price will not reach it's ATH again. Knowing when to buy and sell thru trading can still help us to keep going having bitcoin.