Coins are fine, if you can find the deals. They are just harder to come by because demand is so high.
No matter what you are investing in, the idea is to buy it for less then what you can sell it for later (I know yeh, duh, right)
But when you start in the hole (paying a premium) it just makes it harder, unless you are in a very volatile market. I personally (and this is merely an opinion) believe we are in a sideways market. Meaning you will see small ups and downs, but in general the next couple years we will be about where we are now.
Ofcoarse I'm not making millions analyzing the market with propiatary algorithms, so my opinion is worth less than the phone I typed it with.