Ron
I will not tell you what to do, but I would not give them my credit card number.
We loved DeLorme StreetAtlas, and have used it for many years. But since they discontinued in 2015 the maps are gradually becoming obsolete.
We are now using Google Maps exclusively, which provides the advantage of realtime traffic information. If you have an iPhone and MacBook you can project your phone screen to the MacBook. If you do not have Apple equipment there are several relatively inexpensive programs you can buy to project any smartphone screen to any PC or Mac.
Of course, the Google Maps solution only works if you have a cell phone data plan that allows you to stay connected while you travel.
Dale