I except to be able to pay at local shops with crypto. Also the people who have started now with Bitcoin/Litecoin/Dogecoin will be rich in 10 years. At least that is what I hope

dogecoin is dead already. its just no one has told the relatives yet and they are still holding on in hope that their dear dogecoin will come walking in with a bright smile on its face, filling the hole in their lives.

Litecoin I doubt being relevant, it is bitcoin with a different name. Not got the best community, no real innovation, not even standing up to original claims.

Dogecoin I feel is more likely, just because of its community.

lies
february 22: 0.00000214
may 11: 0.00000105

litecoin is still growing it is on par with bitcoin in 2012 (3 year old) it has projects still in the works.
dogecoin. apart from alot of hoarders and traders on unsecured exchanges (meaning not bitstamp or btc-e) i cannot see any innovation or methods to buy dogecoin direct. but you can deposit actual dollars into btc-e and buy litecoins. is used by actual merchants and there will be a litecoinlocal.com

so i would not put doge in the same category as bitcoin or litecoin

The problem with doge is, it doesn't take itself seriously enough to be a commercial crypto. It could easily be replaced with another altcoin in the 'doesn't take itself too seriously' category. Litecoin will always be the 'silver' to Bitcoin, so it can't also replace Bitcoin. Bitcoin is the 'be all and end all'

There will be thousands and thousands of different cryptocurrencies and everyone will get tired of them

All the junk coins will be gone and a few will remain.

Dogecoin went viral as a meme...
And because of that, could have been
maybe successful.  But it became clear
(at least to me) that it is too inflationary.

Too many doges are created and will be
forever, which is why the price keeps
sinking.  (There is more supply than demand)

what good would private e-currency is it's decoupled from the rest of the world? it's like i gave monopoly money to all my family members, its value is worthless to the rest of the world

Something is only worth as much as everyone agrees it's worth as much. I can declare that my $1 monopoly money is worth USD1000, but, would the rest of the world pay USD1000 for my $1 monopoly dollar?