Each lunar module cost about $149,000,000; adjusted for inflation that’s just under one billion dollars per spacecraft. For all that money, not one was brought home to put on display in a museum. Not only was the Apollo lunar module not designed to survive reentry through the Earth's atmosphere, each was abandoned or destroyed during its mission. The descent stages served as the launch pads for the ascent stages, so were all left in place on the Moon. The ascent stages, on the other hand, met a far more destructive end.