There are several ways to reinvest crypto to earn more crypto. Here are some examples:
Breeding: cryptokitties, fishbank, etc.
Resale: openbazaar, landhodler, etc.
Gambling: bitstars, mbit, betcoin and others.
Has anyone had experience with these sites? Are there other examples of reinvestment?
How can you define gambling as a way of investment? I think it is just a way of entertaining yourself and you will eventually lose your money because the house always wins. Maybe this will push you to lose more funds if you try to recover your initial "Investment".
Investing on the gambling site is also possible,investing in gambling means people can invest on the gambling site's bankroll and they will get their returns when the house made profits overall.This may not give huge returns but definitely will be profitable for the people who are looking for practical returns from investment.