My fiancée had a bunch of extra cash in her Fidelity account from a previous job. I had her buy GBTC when it was heavily discounted and it turned out to be a great buy. Now she works for the city and is required to put money into a retirement account. I think the ETFs make sense in situations like that where you really don’t have any choice but to use a traditional IRA or Roth IRA or 401k.