Dogecoin is a coin with infinite supply. This makes it a bad choice for investment. That doesn't make though Dogecoin a bad coin and maybe somebody will find a way to "salvage" it.
Dogecoin use to have a great community. This means value if one can use it.
Dogecoin is a great learning coin, since is very similar to Bitcoin in many aspects.
Dogecoin was in the past my main choice at transferring coins between exchanges (I didn't trust and still don't trust stablecoins, especially USDT). And yes, it's traded at a great number of exchanges.
Dogecoin, although is a meme coin, is one of the few cryptos that can behave exactly like the money as we know it, exactly because its infinite supply.