bad example
most of those coins were pretending to be 'improved bitcoins' but as we could see all of them have failed
now alcoins aren't trying to substitude bitcoin but to participate with something new
and some altoins made some people flithly rich already: neo, stratis, ethereum, tronix etc
Yea I was ready to tell nearly the same. This snapshot was made somewhere between the times and really is not the best example. Weak competitors of BTC mostly.