Yep, every Saturday, in the mid sixties, me and a mate went off to the Model Shop and bought one, maybe two each. Between us, we had a full Panzer Regiment, with the 'opposition' made up of Shermans, trucks, artillery etc, and a 'river' with about three sets of the 'Bailey' bridge spanning it.
I think the average cost was around 3 to 5 Shillings, just for a single tank, with larger or more complex models costing much more.
I seem to recall that one 'Bailey' bridge set, consisting of one bridge section, two ramps, and all the railings etc, was something like Ten Shillings (50 Pence in today's money), which was a lot back then. Especially when you consider that a Airfix 1/72nd scale 'fighter size' kit, or tank kit, was Two Shillings (10 Pence) !