I got a WEM 15w combo and a shitety Woolworth's guitar, probably called a pawnshop guitar now, in 1980 for 25 quid.
A Electro Harmonix little big muff around '84 for 20 quid
And a 1979 25th Anniversary Strat for 80 quid! Yes really, the bloke who sold me it knew nothing about them and pointed out that it had a large mark in the finish and effectively knocked himself down to that price. I casually paid him but was biting his arm off on the inside!
If they want to sell you gear underpriced, let them. You'll get shafted by someone at some point in your life so don't ever feel guilty about it!