Third party administrators (TPA) including the audits are usually over 1%. Considering an average return of 7%, you are giving up 14% of future earnings for this service alone. Other fees will decrease your future balance by as much as 20-25% which is not insignificant if your plan has a few million in it after 30 years.
Do what I did; roll the 401k money into a traditional-roll-over IRA at scottrade.com
Buy VUG, an ETF with dirt cheap fees (way lower than mutual fund or 401k fees) that matches the Dow
I have my accountant take $692 out of my bimonthly paycheck for accounting purposes as this is a before-tax deduction, and I have my bank automatically send a check to my scottrade account. I receive an email alert when the market is oversold and then I buy more VUG with whatever cash is in the account.