MG23: SSTO isn't about maximising payload it's about minimising cost, ...
How about being more precise about our goals: minimising cost per pound to orbit. Don't forget NRE.
MG23: ... and the way to do that is to have a reusable spacecraft with fast turnaround.
Blanket statement with no shred of supporting evidence in our entire history of orbital launches. And quite a bit of clues that it isn't so.
MG23: ... The problem as I see it is that there's no confirmed market big enough to justify anyone investing the amount of money required to actually build something like it and make it work.
Hm.. I guess the world is just too small for all you SSTO thinkers.
(In case I haven't been obvious, I'm with the lot that's just plain fed up with this pipe-dream swallowing up NASA's budgets, and then having to listen to yet another "But wait - we've got this New Technology. One more demonstrator and we will be at Technology Readiness Level 9.8. Here, we hired some artists to draw pictures so you can believe us.")