 Why was Mr. Burnside so determined to have such a large and specific asteroid delivered to his backyard?
COSMIC YO-YO By ROSS ROCKLYNNE "Want an asteroid in your backyard? Bob Parker, looking through the photo-amplifiers at the wedge-shaped asteroid, was plainly flabbergasted. Not only that, we're rich! "Better take it easy," he advised, "until I land the ship and we use the atomic whirl spectroscope to determine the composition of the asteroid." While Queazy—so called because his full name was Quentin Zuyler—dropped the ship straight down to the smooth surface of the asteroid, and clamped it tight with magnetic grapples, Bob flung open the lazarette, brought out two space-suits. And if The Interplanetary Hauling & Moving Co., hadn't been about to go on the rocks (chiefly due to the activities of Saylor & Saylor, a rival firm) neither Bob nor Queazy would have thought of sending an answering ethergram to Burnside stating that they would fill the order. And yet, if by some chance there was such a rigidly specified asteroid, their financial worries would be over. That they had actually discovered the asteroid, using their mass-detectors in a weight-elimination process, seemed like an incredible stroke of luck. For there are literally millions of asteroids in the asteroid belt, and they had been out in space only three weeks. The "asteroid in your back yard" idea had been Bob Parker's originally. Now it was a fad that was sweeping Earth, and Burnside wasn't the first rich man who had decided to hold a wedding on top of an asteroid. Now that he and Queazy had found the asteroid, they were desperate to get it to its destination, for fear that the Saylor brothers might get wind of what was going on, and try to beat them out of their profits. Now they scuffed along the smooth-plane topside of the asteroid, the magnets in their shoes keeping them from stepping off into space. They came to the broad base of the asteroid-wedge, walked over the edge and "down" the twelve-foot thickness. By the naked eye, they could see iron ore, quartz crystals, cinnabar, but he had the spectroscope and there was no reason why he shouldn't use it. He satisfied himself as to the exterior of the asteroid, and then sent the twin beams deep into its heart. The radiations from the sundered molecules traveled back up the beams to the atomic-whirl spectroscope. He and Queazy caught up with her on the side of the asteroid they hadn't yet examined.
 His granddaughter had requested one for her wedding.
 He didn't actually want it, he just wanted the Saylor brothers and Parker and Queazy to be occupied.  He had previously had one that was similar and wanted another for reminiscing.  He wanted something more grand and valuable than anyone else.  His granddaughter had requested one for her wedding.