The only way it is “worth it” is if the alternative is to not invest at all and either spend the money or let it sit in a traditional savings account.
If you can check your email and pay bills online, you can open a Vanguard account, buy some Commission-free, .04% expense ratio VTSAX, and chill. Will you optimize for all scenarios? Probably not. But you also won’t pay tens of thousands for the privilege to lose money in a down year.