Pros
- Higher potential for greater ROI
- They have low transaction fees
- Legitimate altcoin projects add new value and functions to cryptocurrencies
- Many altcoins utilize more efficient consensus algorithms than Bitcoin
- Some altcoins feature highly scalable blockchains.
Cons
- Increased risks of volatility
- High potential for scams and fraud
- Altcoins with small market caps and limited liquidity face increased risks of market manipulation