Remember, the stuff that's currently in stock was purchased by the stores before the pound fell a bit. What will be interesting is when the newer Campy stuff hits ribble and PBK, etc. That will reflect the pound vs. the Euro, and that's when any savings will be realized.
Otherwise, there may be some super sales not because of the pound's value, but just the drop-off in business.
My guess is that there will be buying as the pound drops, which will mitigate the drop, put a damper on all the hand-wringing and people will go back to whatever it was they were doing before, unless they're Brits working for the EU in Brussels or something.
Right now, appears the world's largest case of sour grapes are being dumped out by the sore losers. They want to change the rules, since they lost. Bet they'd be fine with them if it was the other way around.
Reminds me of a not so long ago election, when many pundits were getting ready to publish articles supporting the electoral college, and then had to put those articles away when their guy ended up on the opposite side of what they thought would happen.