I thought it was interesting that roboadvisors like Wealthfront also charge a percentage of assets, instead of a flat fee. I have Vanguard funds already, and the free tier of Wealthfront. If Wealthfront seems to be doing a better job, I would be tempted to just echo their portfolio balance in my larger account, rather than paying them to do it.

Given how much fees can affect returns, I might pay for Wealthfront's services, but I wouldn't pay a lot, and "$250/year per $100k" seems like too much.