Some interesting choices. A family of four could travel to a 4* all-inclusive resort in Mexico/Caribbean for a week (including air & hotel) for what these properties charge for 3-night stay alone in the summer.
I've stayed at two of them (Ritz-Carlton Sarasota and The Grand Hotel Mackinaw Island). Including taxes & fees, The Grand Hotel charges about $600 and up per weekend night (for two adults, two children) during the summer, with a three-night minimum stay required. We stayed here many, many years ago as my mom was a huge Somewhere In Time fan. The hotel was old - which was its selling point, but this also means it had no air conditioning on a hot & humid weekend. People took pride in dressing up like it was the 1800s (you had to dress up in the evening) and I don't recall the food being spectacular. Very boring IMO and I couldn't wait to go home. Not certain how it's tagged as a top family friendly hotel.