There are a lot of coin not top but still have a very stable investment and of course income from that too. Most of the coins that have just been released, the ICO price is pretty low or can say the price below $ 1 is normal. I've witnessed a coin rise in price from below 1$ to $ 16 in just a short time, and after the past crisis, it still keep the price at $ 4. Talk about the rising in the price of coins,  it also depends on the potential of ICO, an ICO with virtual projects or poor quality can not attract a good amount of investment and of course the ability to increase prices after Release will also be low.