> You can get there after several years at a decent salary. 10 years ago having disposable income - which all goes to savings in this case - on average of $100

> You can get there after several years at a decent salary. 10 years ago having disposable income - which all goes to savings in this case - on average of $100,000 is hardly decent salary e.g. in Bay Area - single people with such a salary will get rather high tax, and cost of living is significant, while families unavoidably have more costs to cover. In other regions it seems even less attainable, overall. So, unlikely.