The entire group tour is divided into at least two segments, the travel agency (tour agency) and the ground receiving agency.
The travel agency is responsible for attracting guests in many ways, such as the Internet, train stations, and even community square dances. Many sunsets come this way.
The pick-up agency, is responsible for arranging the itinerary and taking you to play or shop. Arrange hotels, buses, guides, shopping spots, etc.. Links to food and drink yego tickets etc.
The ground receiving agency usually pay with ID card. For example, Kunming to Dali Lijiang low-priced shopping tours, such as five days and three nights for 980 yuan. The travel agency to the ground receiving agency settlement price.
Yunnan Xinjiang Tibet ID card is about 300-500. and then the travel agency gross profit of about 600.
In Shanghai, Jiangsu and Zhejiang, about -300. you are right. The travel agency gives the ground receiving agent a tourist in Jiangsu, Zhejiang and Shanghai. The ground receiving agency is responsible for food and drink Yego tickets after, will also give the travel agency 300 yuan. At this point the travel agency's gross profit is around 1300.
This answers the question of why there is more than 1000 and 2000 for the same tour on the same trip. Because you are from different travel agencies and they sold you to the same ground operator, so the price must be different.
So a low-priced tour is to go shopping at shopping spots arranged by others and pay them money. It looks cheap, but it's expensive to play. around 3000-4000 for a 9 day Korea tour. You don't really play for more than 3 days, the rest is shopping.
So try to go out as freely as you can. If you can if you don't speak a foreign language, you can book online and travel with other netizens. Not to mention the quality of the games and the value for money.
Where to travel, the most wanted is free travel. All tours through travel agencies, purely for fun, are going to spend money on shopping.