We bought a pop-up one and it only lasted a weekend. Our Scout Groups canvas one is years old and is still working just about. As Camperclan says keep an eye on Ebay. I will be!
99p hex stove & 29p for fuel - cheap fair weather back up stove,
£3.49 2 season XL sleeping bag, sells for £20 everywhere else! we bought cheap (reduced) sleeping bags to put over us in colder weather and it worked for us
£7.49 tent carpet 140cm x 290cm - excellent value
£12 Gelert Sheldon Exec chair - fantastic value and comfy for us although I'm not a lounger person, would expect the back of the seat to sag if slouched on too often.
Not to mention all the reasonably priced clothes.
Amazing family weekend with old steam engines, classic car displays, market stalls, and full catering and bar. And camping on site - Save £25 by booking in advance.