I definitely do. Astrophotography is a hobby of mine and I've been working on a kind of personal app to find me locations in the US that will yield good shots. The variables are moon phase (close to new as possible), weather, cloud cover, humidity, and plane ticket/car rental prices. All things considered, if it's all the same in nevada, new mexico, and utah for a given week, I want to find the cheapest flight to any airport in that area. It's a huge pain in the ass to trawl through all the different flights/airports/dates to minimize my spend.