The old National Olympic Stadium in Tokyo closed down at the end of May with a big sendoff: two days of star-packed concerts in front of a capacity crowd. As everyone knows, the venue is being torn down to make way for an even bigger structure for the 2020 Tokyo Olympics, an endeavor that continues to court controversy due to its projected size and cost, not to mention what it will likely do to the neighborhood around it.
Originally, the estimate for the new stadium was ¥300 billion, but mysteriously this figure was decreased to ¥169 billion just prior to the final bid. According to Professor Tomoyuki Suzuki, who was in charge of preparing Tokyo's unsuccessful bid for the 2016 Games, construction costs for public facilities always end up rising over time, but neither the 2020 Tokyo bid organization nor the Japan Olympic Committee has ever explained that bit of conventional wisdom to the public. He told Tokyo Shimbun last April that the estimate was simply based on a number "that was most likely to be accepted."
There is also the question of what to do with the stadium after the Olympics. The JOC is predicting that it will show a surplus of ¥400 million a year, but as Suzuki points out, this projection is based on the premise that the stadium will host 12 major pop concerts a year, and that, he believes, is impossible, unless the stadium foregoes sporting events, which is what it's being built for in the first place.