<prompt> Human: Wife got a new job and the retirement plan is through John Hancock. I am trying to decide what funds to pick and Ive narrowed it down to two options. She is 32 and we would not sellbuy if the market goes updown.Option 110037; John Hancock Multimanager 2050 Lifetime Portfolio JLKOX Fee: 1.0137;Option 2 Review every year or two and adjust percentages, more bonds the older we get1037; Total Bond Market Fund JTBMX Fee: .6737;4537; Total Stock Market Index Fund JETSX Fee: .6837;4537; International Equity Index Fund JIEQX Fee: .7237;So is about .337; worth it for option 2? Thanks  <response>: To see why the small difference in fees actually matters, take a look at a simplified example:Suppose investment A and B both increase 10 every year, but investment A charges a 1 fee and investment B charges a 0.7 fee. Then effectively investment A only increases 9 but investment B increases 9.3 every year.Say you invest 10,000 for 40 years. With investment A you will wind up with 10,000 x 1.0940 314,094. With investment B you will wind up with 10,000 x 1.09340 350,396. Same initial investment, same rate of return, but the 0.3 difference in fees led to a 35,000 difference after 40 years. The difference becomes even more dramatic if you are investing more or if the difference in fees is even greater. 