That offer of 75,000 Delta miles (for opening a new E*Trade account with $150,000) is tempting. But I hesitate, thinking back to all those posts a few years back about E*Trade making some people pull teeth to get promo miles. Also, even at a penny for each mile, that amounts to $750 for parking $150,000 in a brokerage account for six months. Makes me wonder what is up at E*Trade to make an offer like that.