On Fri, 21 Mar 2008 19:28:30 +0000, tim \(not at home\) wrote

Look at the prices of those shirts, they only need to sell 3 a day,
and they've paid their staff wages already. Tax and unit rental won't
be more than another couple of shirts, etc.

but why would someone buy a posh shirt whilst waiting for a train?

To some, they're not 'posh shirts', they're just 'shirts'