I admit that I've never stayed at Grandma's RV Camping, but I don't have a good impression of the place. Just last month, my husband and I were traveling from Clarksville TN (Fort Campbell KY) toward home in Ohio. We called about 4-5 hours before ETA hoping to reserve a spot for that one night. The man who answered the phone acted like he couldn't care less if we stayed there or not. He told us that we couldn't make a reservation and that it would be first come, first serve (yes, we offered to pay in advance with our Visa). He said that he didn't even know if there was a spot for us or not because he was "at the house and the campground is managed from the house away from the campground". Anyway, we decided to call up someplace else because of their non-chalent attitude and especially since we couldn't be guaranteed a spot to pull over for the night. We hated to take the chance of arriving tired only to find out there was no room for us.
We ended up staying at Crossroads Campground
near Elizabethtown (think it was originally listed as a KOA with a Sheperdsville address in our 2007 The Next Exit book...time to get another, I guess!): Home - Elizabethtown Crossroads Campground KY
They were very friendly and accomodating and took our reservation when we called with no problem. I don't know if it's too far for you, but it's just off of I 65 exit 94, maybe a mile at most east of the interstate
. I wouldn't consider it a destination campground, but it was great for our stop and semi-wooded, and for the $25/night they charged us, it was hard to beat! It was clean and perfect for an overnight stop or two. I believe that they used to be a KOA. They provided FREE internet (which was excellent, btw) and we had a very long, pretty level hard-packed gravel pull through. (We were an almost 40' motorhome, towing small truck w/tow dolly, and I was right behind with a Chevy Suburban...long story, pardon the pun...but we all fit with still plenty of room to spare both in front and behind us!) We had water & electric hookups (they have a clean dump station) but they also have full hookups available. We had good DirecTV signal from our site. I saw several big rigs the night we were there. We arrived around 10:30 PM and the very friendly owner even came out of his on-site house to greet us, which we totally didn't expect. If it's not too far for you, I'd recommend them for a stop.