It's true, but those coins don't have the market cap that DOGE does. It's been within the top 20 for a long time now, I think the trust, speed and the ultra low fees (even a 5 DOGE withdrawal fee isn't that bad) will keep DOGE around for a while.
Maybe. But, I've seen so many coins out there which are much faster and cheaper than Dogecoin. Don't get me wrong, but DOGE has gone a long way ever since it was created. It's just that other altcoins are much better and can do more than Dogecoin itself. I think that what's keeping Dogecoin alive as a cryptocurrency, is its own community. Imagine when Reddit shuts down as a service, Dogecoin will be doomed because its supporters hang in there.
Therefore, even if Dogecoin is fast, or cheap, it won't have any serious future, other than being used as a speculative cryptocurrency or as a tipping tool. I just hope that development would rise again for this coin, so that it could shine among the rest of the altcoins in the market today.
