JWST is the cutting edge of space telescopes, hasn't actually been successfully deployed and now you're suggesting building and launching 25+ of them and then a

JWST is the cutting edge of space telescopes, hasn't actually been successfully deployed and now you're suggesting building and launching 25+ of them and then assembling them in orbit.. Right now the only things 'built' in space are all handled by astronauts on the ISS assembling things by hand which adds on the conservative end a staggering amount of cost to the budget. Add on to that that now you have a much harder job of building any new experiments to run on this monster space telescope which is a fairly common thing for ground observatories. We're many steps away from being able to move the best ground observatories into space and get equivalent data out of them.