Adding a field to mention cost? Answered
I think I have read many instructable pages and don't see that users mention the cost of the project. They do mention what materials and spares were used and where to procure them from, but I think that the uploading user should be requested to mention the cost under the instructable, so that a new reader gets an idea of approximately how much money it is going to cost him apart from the time he has to put in.
A new field at the end of the instructable whereby the users may enter cost of each item listed or the total cost of all the items in the project. This will greatly enhance the instructable pages.