Today I was thinking that if Bitcoin has another 2017, all alts will also go up. Maybe not the same as Bitcoin, but a good chunk. It gives me hope for the alts that I'm currently holding.
It depends entirely on what kind of altcoins you are holding, if you are holding some of the top altcoins in the market then you are right you are going to make money in the future but if you are holding altcoins that are not really that good and you have high hopes for them then I can say to you that most likely those coins are not going to go up in value.
The value of most of those coins is based on nothing but hype and hype is something reserved for the newest coins so by the time that the bull market appears if your coins are too old then no one is going to care about them.
You're right. The top alt coins is more of a sure bet. It's a risk and reward thing, lower marketcap coin have the potential of giving you a bigger return, but it's a much bigger risk. So it's best to stick with the top alt, but diversify a little with lower marketcap coins.