travelnutz,
I don't disagree with you about Nolin Lake not being an overnight spot. We would not want to drive 20 miles of secondary roads for an overnight stay. As far as a couple of days, it seems that many (some with boats), do come in just for the weekend. Our stay was four nights, mainly to give the dogs some water recreation. We did tour Mammoth Cave, also.
As I stated earlier, this trip is a "state park" trip and we are not staying in private campgrounds (except last night out.) There are other public campgrounds in the area. For example, Moutardier and Dog Creek COE campgrounds. We choose Nolin Lake State Park because of jspringator's recommendation and its small size - 32 rv sites. As you can see in the pictured posted earlier, the campsites are widely spaced.
If you are a Passport America member or one of the other home CG Resort Members, Diamond Caverns CG is close to half the price of Nolin or most other local places yet.
Are you saying that Passport America members only pay $13 per night at Diamond Caverns? I would have thought it was closer to $21. (We paid $25 per night at Nolin Lake.)
By the way, the three public parks mentioned in this post are all rated higher in RVParkReviews than is Diamond Cave.
Colin Lake State Park - avg rating : 9 (26 review)
Dog Creek COE - avg rating: 8.5 (16 reviews)
Moutardier COE - avg rating: 8.4 (19 reviews)
Diamond Cave - act rating: 7.3 (59 reviews)
That extra 15 to 20 miles of pulling or driving an RV is far from cheap as it's times 2 as you eventually leave the place also so it negates all or most of the cost savings one can cite. The extra Fuel required, tire wear, mechanical rig wear. and then there's the additional driving time times 2 also are real factors.
When we are doing this type of tour, it not the cost of the campground, or the cost of driving the RV that determines whee we want to stay. It is location, location, location.
Tom
2015 Meridian 36M
2006 CR-V toad
3 golden retrievers (Breeze, Jinks, Razz)
1 border collie (Boogie)