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 )
Aluminium frame?
Looking at the web site it appears to be 6x4 from what I could see unless it was an in-store only offer.
This one maybe?
http://www.focusdiy.co.uk/Greenhouses/-Popular-Greenhouse-4x6/invt/299039
Yup, aluminium frame. I didn't see it built, but the boxes were stacked (upright and very tall :) ) on a shelf end display. And it was definitely 8' x 6', according to the large sign. Must be, as you say, in-store only.
We have the 4' x 6' one, same as in the link, from last year's special offer - it was £99 at the time.