To a large extent, Egyptian tours are not so very complicated, but it can seem that way because of the seemingly thousands of companies offering them. With regards to Egypt, classical tours are basically antiquities tours that visit various site in Egypt that have often been popular with tourists since classical times.
Typical, classical tours almost all hit the same major spots, with with minor tourist attractions making up their largest variations. Originating in Cairo due to the international airport there, one usually spends a few days either at the beginning, at the end or split between the beginning and end exploring Cairo's heritage. From Cairo they go south, usually to Luxor or Aswan, but one way or the other visiting both cities. Sometimes they include a Nile Cruise in this arrangement.
They will frequently visit a few of the other temples above Luxor, between Luxor and Aswan, and just below Aswan. Add-ons might also extend the tour further south to Abu Simbel, or east for a short beach vacation at Hurghada, or across the Gulf of Suez to Sharm el-Sheikh, and perhaps some sightseeing at St. Catherine's Monastery and Mount Sinai. Recently, many classical tours are also purchased with an Alexandria add-ons. More exotic add-ons may carry tourists into the Western Desert, or the Eastern Desert, but all in all, the basic classical tour is not all that complicated. Yet, when looking from tour operator to tour operator, there often seems to be a whole maze of confusing options for many people.