While wrapping paper may look like a bargain at dollar stores, often it’s not. The Paper is thinner, and the roles are usually smaller. While thin Paper is alright if you want to pack something boxy, it will be a nightmare trying to pack something bumpy or edgy. It will constantly tear.
The roles are smaller, which is ok if you don’t have much packing to do. We all hate when we have to buy a large part, and we need to wrap only one item. But in case you need to pack a lot of presents, you should buy more rolls, and it negates the whole saving part.