Shiba Inu Crypto's Wild 2021 Created Millionaires, But Future Growth Uncertain
- Shiba Inu crypto took off in 2021, making some people rich
- Approval of a Bitcoin ETF could spark a crypto rally and lift Shiba Inu's value
- Shiba Inu is one of the most popular cryptos, which helps its value
- But its growth has lagged rivals, tempering expectations
- While possible, it's very risky to expect Shiba Inu will make more millionaires