Bitcoin etf

If a bitcoin etf gets approved. Would any of you buy into the etf? I am able to have a self directed brokerage account thought my 401k with my work. Should I direct a portion of my 401k into bitcoin etfs? This would give my 401k crypto exposure which it currently does not as of now. The whole sentiment I’m seeing is that with an ETF there will be massive institutional investment hitting the crypto market. Will that make the etf do better than actual bitcoin? I guess. Should I buy right when it’s available or should I wait a little while after it hits the market.

What is others thoughts? Will you buy into an etf if it get approved?? I’m not sure if it would be better to wait for the initial buy in to see if it drops first? Anyone here experienced with ETFs?????