NXT is the best I know about.
100 bux would have netted you 20 million NXT, ~300 would get 50 million

That's between 2-5 million for 200-300 dollars

and had you not sold you'd have also gotten that in Ardor and been able to get a .5 in Ignis.

Crazy returns for anyone who wanted to HODL, even a seller would have done wlel since NXt hit around 12 cents before hte Ethereum ICO even happened - imagine having that amount of capital to put into ETH!