What really annoys me about the chicken that's been pumped up with (usually brined) water is the way they now market it. On most packs they say "with added water to improve tenderness" or something along those lines. They don't say "with added water so that we can sell you 4.5kg of actual chicken, 0.5kg of water and charge you for 5kg".
What's more annoying is that when they're asked why they do it they say it's what their customers demand because it makes the chicken tender. Well maybe that's true(although I doubt it), but I bet they didn't ask their customers if they wanted to pay for 5kg of chicken and only get 4.5kg!
Anyway, as far as water-plumped chicken breasts go, Farm Foods sell two 1kg bags for ?8 (so ?4 per kilo) and they do exude a tiny bit of the white gunk when fried but compare very favourably to, for example, Morrisons cheap chicken which puts out a puddle of the stuff.