WHAT HAPPENS AFTER LUCKY BURGER CLOSES A few more details to add to our ground-beef-breaking report yesterday on the demise of Lucky Burger: The business’s current owners, who’ve operated the 40-year-old fast-food joint at the corner of Richmond Ave. and Mandell for 15 years, plan to retire. An employee tells Culturemap’s Eric Sandler that the owners couldn’t afford the landlord’s pricing for a lease renewal, and that “prospects in Montrose for a space thatâ€™s sufficiently inexpensive to support a $5 cheeseburger are simply too dim.” Meanwhile, Braun Enterprises’ Dan Braun, who heads the partnership that bought the building and the adjacent strip center in 2011, tells the Chronicle‘s Erin Mulvaney that they hope to lease the structure with the barrel-shaped roof penetration to another business once Lucky Burger is out. (Entrepreneurs salivating over the marketing power of a well-known burger stop in the shape of a beer keg might want to note that craft beer bar Revelry on Richmond is set to open soon next door, with hamburgers on the menu.) Lucky Burger plans to wrap up its business — and its last burger — before this Saturday. [Culturemap; Houston Chronicle; previously on Swamplot] Photo: Houston. It’s Worth It.