In 2009, he bought a building with a little more provenance -- and parking.
Ketelsen owns one of the oldest buildings in Eureka Springs and in June, opened an antique, art and home decor store on the ground floor of the original house and its additions, which triples the space and frontage.
"It's what I look for when I visit other cities," he said. "I want to go off the beaten track and explore.
"And a major factor for us is the parking."
In the second block, on the left, is his new business, Deju Vu. According to "Eureka Springs Views," the two-story house was originally the home of the Burkhart family. In the 1890s, it was the site of N.L. Burkhart's company, Eureka Springs Monumental Works, which advertised "monuments and cemetery curbing, markers and cut stone work."
The house later housed artists, and for the first year he owned the property, he leased it to Artifact Gallery, which moved to Spring Street last fall.
To stock the shop, he drove a truck to New York, retrieved what treasures were left in his family's barn on Long Island, then went on a shopping spree through New England.
When he returned, he hired Janet Rivera as store manager. They spent several months inventorying the 2,000 items Ketelsen had purchased, from antique furniture to collectibles. He chose the name, Déjà Vu, to reflect the store's range.
Being in the antiques business is déjà vu for Ketelsen, whose mother and aunt were antique dealers -- he used to go with them on weekends when they did antique shows in New York, Connecticut and Pennsylvania.
He also worked in the restaurant business. After graduating from Dowling College in New York, he earned a master's degree in social work from Fordham University. He was finishing school when he met Paul Wilson, owner of Ermilio's restaurant, who was visiting New York from Eureka Springs.
His first business, the restaurant, was called Sonny's -- the name his grandmother called him -- and the martini bar was named for his dog, Olive, a pug.
Ketelsen helped found the North Main Merchants Association and lobbied at the local and state level to obtain funding to build sidewalks along the street.
Sonny's was the first restaurant in town to participate in an Ozark Guidance program to integrate people with mental health challenges into the workplace. "Cooking, antiques and working with people with mental health challenges are my passions," he said.
Ketelsen works at Déjà Vu on weekends. During the week, he commutes to Rogers, where he is C.E.O. of Piney Ridge, a residential treatment center for youth. He's also working on an M.B.A. from the University of Phoenix.
Ketelsen has two pickers (antique buyers) working for him, one in New England and one in the local area. He also hired Sondra Torchia, a local tour guide, to help out at the store.
"When I moved here, people were talking about having this building torn down," Torchia said.
Located at 184 North Main, Déjà Vu offers free, off-street parking for customers in front of the store and across the street. It's part of Ketelsen's plan to offer visitors an alternative to the Spring Street squeeze.
His goal: "We want people to pull in, park and feel relaxed," he said.
Déjà Vu is open Thursday through Monday, 10 a.m. to 6 p.m. Closed Tuesday and Wednesday.
For more information, go to www.Déjàvuofeureka.com or call 479-282-8191.