For what it is worth, my supervisors both said that while I should enjoy the courting to the maximum, I should not in any way take it as an indicator of how things will be once I accept. For that, talking to current graduate students is the only vaguely reliable indicator of the realities of the programme.
Anyone still waiting to hear from MIT? I haven't heard a peep.
(when this happened with Brown I ended up on a waitlist, so hoping for the same this time!)