Comment by derekp7

Question -- Is the cost of projects such as Webb so high because of high launch costs, which in turn has a cascade effect on limiting the the projects that get launched to space, and therefore requiring that they be built to higher specifications because you only get one shot at it? If so, then will the lower cost of space access from future vehicle development (such as Star Ship, and others that may follow) make projects such as future James Webb scopes and deep space probes much cheaper, if they know they can easily launch replacements and iterate the designs? Or is this just fantasy at this moment? I haven't really found much other than speculation comments (such as mine), but would like to see a professional's opinion.