...even though it's probably pretty unlikely:
https://youtube.com/watch?v=RVYXTbqxHWM&index=21&list=PLlRceUcRZcK16xmdhHM5ZKdE2U8MO4T3x
Still, this is directly relevant, because Warframe used pretty much identical artificial scarcity techniques - albeit at least with their artificial scarcity system you could at least be certain you'd get the thing you want when they brought it back, as opposed to having to gamble for it. So... there's definitely a better way out there. Including asking what your customers would like to buy.