On Thu, 19 Jan 2006 10:21:43 +0000, asdf
said:

Unless tickets are checked often, daily commuters would be able to get
away with buying this type of ticket and re-using it every day, only
needing to buy a new one if the old one gets inspected and stamped.
The train companies don't want to have to check tickets frequently
enough to prevent this. So they just don't sell period returns at all
where they can help it.

While I can understand this in the general case, it does seem a bit
stupid to not make a special case for the airports. More people, I am
absolutely certain, travel to the airport and come back a few days
later than commute daily to and from the airport.

Oh, wait. Two singles cost more than a return. NOW it makes sense.
And they don't even need to worry about me driving there instead
because airport parkingcos make Shylock look good.

--
David Cantrell | http://www.cantrell.org.uk/david