Mine (BOCM) has gone up from £269 to £290 a tonne in the past month. I also buy Haygates nuts from a local feed merchant by the bag when I need it (for weaners) at £6.95 a bag. Says he can do it for £305 a tonne, so not a lot of difference from what I'm paying for BOCM.
All the pigs LOVE the Haygates food (they do sow rolls as well as nuts), and it's handy if I need to fatten quickly or put condition on a recently-weaned sow. However, I'm reluctant to switch completely because the feed comes in paper bags and they don't take much time to soak through and the food gets mouldy. If they would switch to plastic, I'd swap straightway.
I wish I had the facilities to have it blown in, but I don't.