It's all fun and games, but you need to remember that this is Canton Vaud, one of the most fiscally irresponsible cantons/states in all of Switzerland. The article briefly mentions is, but a lot of this "cooperative" housing is heavily subsidized by the canton itself (the article mentions the cheaper 99-year lease but it goes way beyond that) and the resulting shortfall in money is paid for by other people (i.e 100,000CHF yearly income in Vaud is the massive marginal tax wall in Vaud). I've still, to this day, not managed to find out any detail about how these apartments are valued for the purpose of the VD wealth taxes (You can impute house price based on comparatives or rent, here obviously rent would be lower).