If its only 50 dollars I would go for a high risk low market cap coin or an ico. But I would a hell of allot of research into where you place that 50.
I think it's better to invest in ICO, I strongly doubt that any even a small coin will make x10 in a short time. In ICO this probability is higher.
I completely agree with you, Because when conducting an ico company, many provide bonuses for investors. There are even about 50% discount, for the very first.