Scott Hunter, a sales coordinator who helps people pick out their million-dollar babies at Ancira RV, near Fort Worth, Texas, told Yahoo Travel that people who buy models priced over $1 million usually pay cash and use them only a few times per year.

That begs the question of exactly where they take them. Yahoo Travel went in search of the answer and found one of the hottest trends in RV parks — what the industry calls “motorcoach resorts.” These resorts sell condominium-style lots that come with perks ranging from golf courses to private marinas and movie theaters. They maintain exclusive clientele by allowing only Class A motor homes, which are the industry’s largest models.

Interest in these ultra-luxurious resorts is high enough that we found many of them still in various phases of construction. As existing units sell out, construction begins on additional lots, as is the case at Mountain Falls Luxury Motorcoach Resort in North Carolina, where 86 new lots are in development. Traditional RV parks are even overhauling entire sections of their parks to add the necessary luxuries, which are then locked behind security gates and offered only to those arriving in “buses,” as the oversized custom coaches are often called.

Many motorcoach resorts offer “coach houses” or “casitas” at each heavily landscaped concrete parking spot. Picture an extra living room, kitchen, or even a complete apartment placed strategically near the motor home to provide extra space for living and entertaining. Others have outdoor kitchens, fireplaces, and private hot tubs. And don’t forget that there has to be space to park a golf cart, too! Mountain Views at RiversEdge RV Resort in scenic Creede, Colo., offers “coach retreat” packages that can include fireplaces, steam showers, and luxury kitchens under canopies that can be left open to take advantage of cool mountain breezes.

It’s no surprise that the most resorts are popping up in Florida, where sites like Aztec RV Resort and Myakka River Motorcoach Resort cater to retirees, golfers, and snowbirds who flock to the Sunshine State to escape the cold. However, the trend is not limited to the Sunbelt states. We found luxury gated resorts in almost every state, including Michigan, where Hearthside Grove matches both the luxury and price tag of sites in Florida and California. Bigfork Motorcoach RV Resort in Montana has just slightly fewer amenities than Southern resorts, but the site makes up for it with Flathead Lake and Glacier National Park.

For the full Yahoo! Travel story, click here.