I am going to blatantly open with a central assertion: we are in a bubble.
I strongly disagree. It's simple, it's all about maths.
The total crypto marketcap is $35 billion right now... See how much FIAT money and not only are out there http://www.marketwatch.com/story/this-is-how-much-money-exists-in-the-entire-world-in-one-chart-2015-12-18 Our "bubble" is so tiny next to the USD bubble that is like a non existing market ... So i will make the opposite to your prediction that the altcoins will get pumped hard the next years... (Of course with much up and downs between, of course it will not go straight up)
Saying we are in a bubble does not mean that I think the market cap won't grow. Altcoins are going to be pumped to the moon for a while, regardless if they have a utility, novelty, community or developers. When investors realize that their latest VIVAconomy investment has nothing to show for it, they will be more conservative. A lot of this does not apply to projects with established utility like Ethereum, Bitcoin and Monero. These projects have a decentralized development and widespread integration; unlike many altcoins - they will endure most of investors impending conservatism.
I hope you are right but the appearances (in terms of people investing recklessly) are very much like a bubble.
Crypto is the future for sure and a bubble is not going to stop it, but it will slow it down when it pops.
The same thing happened with the dotcom bubble and the internet.
The internet is stronger than ever but that does not mean the bubble didn't occur and that it was not a massive setback.
There is no harm in exercising caution and judgement.