It depends upon what you mean by "on the cheaper side". If you mean. you are looking for a lower priced deluxe resort than the Swan/Dolphin MIGHT be a good choice - it depends upon the time of year and what discounts you qualify for and are available. Out of the Disney Resorts on property, the Wilderness Lodge and the Animal Kingdom Lodge offer the lowest rates (in the deluxe category) for their rooms - especially standard rooms at AKL. If you want relatively low price and near the MK or Epcot areas, the WL is your best bet.
The lowest priced rooms owned by Disney would be in the All Star resorts, Pop Century and Little Mermaid rooms in Art of Animation.
Lowest prices of all are to be found in the Disney Springs area resorts (Not Disney owned).
There are all sorts of factors such as time of year, day of the week and any discounts that may be offered - these could impact the situation and result in a better deal at another location. However, as a general rule, the lowest prices are in the above resorts. Another option is to rent points to stay DVC, which will often get a lower price (for a deluxe stay) at one of the deluxe resorts. That requires booking at 11 months, paying up front and usually no cancellations or changes are possible.
Ooops! Forgot about the. campgrounds. Camping with a tent will often be the lowest cost of all, if you like that sort of thing, in Fort Wilderness.
Good luck!