if there are any company owners reading this whole be running a trade stand at Campaign, may I suggest somehwre around 99.6% discount (obviously you can round it to 100% to make it easier on the books).
But seriously, most things tend to be a little cheaper at the big tourneys (not a lot, but every little helps) except for the obvious things like 9V's (and the burger vans aint cheap either
)
And remember, even though you may be English - it aint illegal to have a haggle too