Tickets for the GBBF will go on sale from April. Prices have not been announced but I think non CAMRA members will pay 8 or 10 pounds per day. A passport ticket is cheaper if you plan to attend 3 days or more. I will probably attend Wednesday 14, Thursday 15 and Friday 16. The passport ticket was 23 pounds last time.
I will announce when the prices have been posted on the GBBF website.
If I fly to London on Tuesday 8/6 and leave on Sunday 8/18 I can use my mileage points and pay 93,520 yen for the flight including surcharges! That's a saving of 74,000 yen minus one extra night and one day's food/beer money!!!