ISS was built with lots and lots of really, really, really expensive Shuttle flights. The Skylab was 1/3 the size and only needed on launch. The price of maki

ISS was built with lots and lots of really, really, really expensive Shuttle flights. The Skylab was 1/3 the size and only needed on launch. The price of making a station also goes down massively with the going down of general launch prices.