It seems unlikely that an endless space station--and shuttle--program
can continue indefinitely, what other choice is there, for now?
I, for one, feel it's time for some robotic landings on Ceres, but
that's another matter.
Venus isn't 10% the cost of accomplishing Ceres, and at least with
Venus there's local energy to burn (so to speak) and shortage of
water, whereas Ceres is going to be worse than Mars like, except a
minor planetoid that's icy and considerably smaller than our Selene/
moon.
At the likely vacuum of 3e-16 bar or somewhat worse, it's highly
unlikely the ice is that of h2o(water), whereas Venus offers at least
500 teratonnes of h2o within those acidic clouds.
There's dozens of valid reasons why Venus is technically the only
nearby alternative, and at least Russia agrees.
~ BG