I got mine from Ebay for £4.99 + p&p. The blurb said it wouldn't have the cushion/tool puter inner thingy but to my delight it did :o.
Have used it whilst doing all sorts of things, ie. cutting out fabric on the floor, weeding patio, in fact loads of low level jobs. Thanks Superdoopersprout for bringing it to my notice. What with that and the elastic back support (sooo glam), I'm not doing too badly this winter.