Swimming pool, cocktail bars, safari ambience, organized game spotting trips, orientation by trained naturalists, and all. You will love it if you have the money. These luxury hotels generally package the whole tour for their price, including transportation to and from Kathmandu, meals, park entry fees, daily activities, etc. The budget hotels in Chitwan are all located just outside the northern border of Chitwan National Park, in a village called Sauraha. Sauraha, in the past few years, is quickly turning into another Thamel or Lakeside.
Competition is so intense among the dozens of hotels that bargaining is very common.
If you take the public bus to Tadi, touts who serve as agents to one of these budget hotels will pounce on you, don't give in. Check the hotel out yourself, and play one tout against another to get the best rate. The price includes all basic expenses including transportation, accomodation, meals, tours of the area, etc. You can obviously do the same for much less, but if you want to go on these tours, the main tourist areas in Kathmandu and Pokahara have booking agents. Shop around, and bargain.