With crypto gaining prominence as a mainstream investment vehicle, retirement savings in the form of IRA accounts holding digital assets is on the rise in the US. And according to industry insiders Cryptonews.com spoke with, companies offering crypto IRAs had their best year ever in 2021, despite strong volatility in bitcoin (BTC). Also, interest in altcoins is rising, they say.... Read More: 2021 Was ‘Busiest Year by Far’ for Bitcoin IRAs, Interest in Ethereum & Altcoins Grows