Microsoft Streets and Trips coming to end of life

I was going to buy MS Streets & Trips plus GPS to run on my Win 8.1 laptop (I can't see those tiny screens and drive at the same time). Now I'm not so sure. I've seen a lot of bad reviews on the Street Atlas. Now I don't know what I should buy! I like to run on the US highways and primary roads not the interstates. I also like to find out-of-the-way campgrounds and wide spots next to rivers and streams to stay next to. So what would be a good non-wifi dependant mapping program to get?