<prompt> Human: My wife and I are looking to buy our first house this summer. We have saved a 20 down payment and were hunting for the best mortgage rates. We can get a 3.75 rate on a 30 year fixed, or a 2.875 rate on a 15 year fixed. We are pretty sure that we will want to movebuy a bigger house in 5-10 years. If we can comfortably make either payment, which is the better choice? Would it be better to choose the 30 year fixed and invest the rest we are young and can tolerate risk in our investments? Would investing in equity in the home with the 15 year fixed be a better option? I was always taught that with low interest rates, you would be better off paying the loan slowly and finding a good investment with a high rate of return with your money, but the low 15 year rates are tempting!Edit: Thanks for all the info and opinions. We have some more research to do, but this helps a lot.  <response>: Another point to think about. Moving does not necessarily mean selling the house. When you move, your house may just become part of your portfolio of investments, generating rent. 