In message
, at
09:35:03 on Thu, 8 May 2008, MIG remarked:
Even if you happen to use
one such gate to enter the Tube system, you will still be leaving it
by a gate with a reader or a standalone target - all of which will
show you your balance.

I can't remember the last time I went in or out of an LU gate that
displayed anything at all apart from maybe "Enter" or "Exit".

The display of your balance is somewhere that you have to train yourself
to look for (otherwise you miss it), but it's there.
--
Roland Perry