I usually take 2 to 3 week vacations, but I try to do interesting things. Ride horses around mongolia. Hike volcanos in Indonesia. Bike and eat across France. Planning is a huge pain because we have to learn everything before we can make the right choices. A travel agent already knows the domain. I do think there could be tools to help agents arrange trips more quickly given our unique constraints. Sadly, there is no app for that. Regardless, the market is likely a small niche.