Business travellers tend to fly and stay in hotels often and that makes their profile an excellent choice to inculcate customer loyalty.
Airlines and hotels offer similar services, especially for business travellers and guests. Airlines offer business class services while hotels have executive rooms with all necessary amenities to make the business traveller comfortable: large desks, free internet access and couches.
Loyalty Program has been in existence for a long time now but is still unknown to all. This gives incentives and priviledges to frequent customers. It is also beneficial to hotels and airlines as it leads to repeat business.
You can extensively improve your travel experience through strategic use of airline miles and hotel points, for example after 10 nights and 15 stays with a particular hotel brand, you can get a free meal ticket or a free room, flying one-way in Business Class from New York to Lagos will earn you 5,000 miles and you can exchange your miles for tickets, though this varies as different hotels and airlines have various loyalty programs.