You value selling the Dogecoin, the Dogecoin as a means, not the Dogecoin as an end. Which is exactly the right way to think about any exchange currency.

People here talk about stacking and hodling Bitcoin as if digital fiat on a grand unified surveillance chain should be valued as a good in itself, not a mere facilitator of exchange to give away immediately, like your Dogecoin.

Oh, that's because they believe it is centrally planned to be deflationary, all of reality be damned? Their end, then, is accruing wealth, and the means is buying Bitcoin low and selling Bitcoin high. But if the price of Bitcoin is expected to rise, that actively discourages the use case as a medium of exchange. You're less likely to hire Johnny to mow your lawn, more likely to do it yourself - and thus make the whole economy poorer, one exchange that never happened at a time (the Austrian school teaches us prosperity itself excretes from the felt improvement in standard of living from both parties to a voluntary exchange). By discouraging voluntary exchanges, Bitcoin makes everyone poorer in real terms - regardless what happens to it's index price.

Any large fluctuation in any direction retards the function of an exchange currency and renders economic calculation in terms of anything else in advance impossible. And with a centrally planned, artificially fixed rate of supply, there's no market-determined rate of supply that can ramp up or down to counterbalance swings in demand, to stabilize the price, like there is with most goods. Bitcoin is thus engineered to swing wildly in response to any changes in apparent demand, enabling whales to game it by wash trading and generally just guaranteeing volatility into the future.