Is this Gilded Age boom town New Yorks last affordable family getaway?

The Hamptons are a hedge fund fiefdom.The Hudson Valley is now home to multiple $2,000-plus-a-night hotels.

Even Litchfield County, Conn., once home to farm stands and little else, is full of cashed-up city slickers.That leaves the Berkshires.Three hours from Manhattan, this western Massachusetts mountain range has somehow avoided becoming completely unattainable for the regular Joe.

You can still book a charming inn, take the kids to dinner and expand your cultural horizons without dipping into the 401(k) — especially if you visit now.It wasn’t always this democratic.In the late 19th century, the Berkshires were the Newport of the mountains — a summer refuge for the same Gilded Age families who built mansions on Bellevue Avenue.

The Vanderbilts and the Carnegies erected sprawling cottages across Lenox and Stockbridge.Edith Wharton wrote “The House of Mirth” at the Mount.Old-money DNA is everywhere in the Berkshires, but the price of admission today has almost nothing to do with what it cost back then.“While summer rates can be higher, our efforts focus on expanding the Berkshires into a year-round destination, offering lower prices in off-peak seasons,” said Lindsay Schmid, senior vice president of the region’s tourism board.

“We are actively working to make the region more accessible to underserved, younger, less affluent and more diverse travelers.”In other words: Strike now, while the rates are still within reach.For something between a hotel and camping, there is Huttopia Berkshires (from $83), where you can stay in a spacious tent or tiny house and have easy access to mountain biking at Jiminy Peak, as well as hiking on nearby Mount Greylock.In Lenox, Brook Farm Inn (from $194) is the sort of old-fashioned bed-and-breakfast that people crave in New England, complete with fireplaces, four-poster beds and a hearty homemade breakfast included in your rate.And for something that feels like a splurge but really isn’t, the Williams Inn (fro...