As per title really. Was in there today (Consett store) and spotted this on sale. Not sure which greenhouse it is, because OH was carrying bags of compost for me and refused to stop and inspect it, but the label definitely said 8' x 6', with horticultural glass, for £199. I think it said £50 off, so it obviously wasn't one of the big names, but we bought a bog standard 6' x 4' one there last year for £99, and we are perfectly happy with it.
No sign of it on their website. And probably worth ringing first to check before going. (Covering my tail here, just in case ;D )