Saving money is a wonderful thing, but when you figure your time to take down the fence, roll it up in a usable way, then repair the dameged places and reinstall it, the time saved by simply unrolling a new roll may offset the extra cost. I have done it both ways and the "hassle factor" is my motivation for using new wire. It is just easier and unless you are erecting a mile or more of fence, worth my money to be stress free.