The Grayscale Bitcoin Trust is one of the easiest ways for crypto investors to hold Bitcoin without worrying about hackers or scammers.Grayscale wants to convert GBTC from a trust into a spot ETF to reduce the 2% annum management fee and attract more retail investor interest.GBTC currently trades at a 24% discount, which gives investors a solid reason to buy the trust assuming the SEC approves the spot ETF.