Algunos hombres ven las cosas como son, y dicen: «¿Por qué?» Yo sueño con cosas que nunca fueron, y me pregunto: «¿Por qué no?» - Tony Robbins

Why would anyone want to invest in mutual funds through an annuity? Because annuity products have special tax benefits, and the money inside can grow tax-deferred, just like a 401(k) or IRA.

Asset allocation, where to park your money and how to divide it up, is the single most important skill of a successful investor.

Asset management fees, 12b-1 fees/marketing fees, trading costs (brokerage commissions, spread costs, market impact costs), soft-dollar costs, redemption fees, account fees, purchase fees, record-keeping fees, plan administrative fees, and on and on.