Yes it is happiness, if the price of Bitcoin rises very high, because it automatically provides benefits to buyers who buy at low prices. Hopefully the price will rise again.
And there is always joy too when the price of BTC goes down, one sure fact is that no matter how long, price of BTC will always go high, so the most important and happiest moment to me is when I am able to buy low, if there is no moment of dip, then there is no way we can profit or take part in the high price, the more dipper price we are opportune to buy, the higher our profit will be, so people should not always be happy alone with when their bitcoin price goes up.
But, it should also gladdened their heart to see it go down, because of the opportunity it gives then for them to buy and be able to catch the profit when it increase back.