Last time we went to a KOA was to take the grandkids and enjoy the amenities they had. Cost was right at $100 a night by the time they added in all the "extras".
Before that was in about '96 or '97 when a group of us went to Yellowstone, stayed the KOA around the west entrance. One of our members had a blended family, by the time they added in the extra's for the kids it was about $75 a night. Lots of mosquitoes, kids tried to go swimming, were told they couldn't use the pool, tried to play games and were told they couldn't and this was after he paid extra to use them!
We stay away!
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Good Sam Lifetime Member, FMCA, SKP
RV'ing since 1957, NRA Benefactor Life, towing '05 Odyssey