I travel quite a bit overseas, all my miles I use for my wife and I to take a trip to a country we have never been to. (J/F)
We have 3 credit cards linked to hotel chains, so our trip , usually around 7 to 9 days, the airfare is free (expect tax etc) and the hotels are free (expect some tax)
so our only expense is food and transport within the country we are visiting
Its a nice way to see the world and not spend a lot of cash...