I've done it a few times, 11 am on a saturday, plans have fallen through I will just think, sod it, I'm off to see Saints! Down the M40/A34 I go.
Arrive at 1.45, get ticket, quick pint in the King Alfred, jobs a good 'un. Frankly, two whole pounds won't make much of a difference to my decision. Mind you, being given a half season ticket for Xmas will force my hand somewhat.