Some coins under the bull will grow so much that will make you rich.
I agree but isn't it bitcoin will grow first before any alts? 
. During the beginning of the bull, bitcoin will dominate all coins and will lead all coins to downfall. And bitcoin is too expensive investment. In stable growth.
Wait, bitcoin is expensive? I think not, this is why if you only have 20 dollars in your pocket you can own a bitcoin, but only in decimal form.