well I bought both Rock Band 1 and 2 Special Editions
rock band 2 being $190
the cheapest would be Halo 3 Legendary which was GIVEN to me... but if that doesn't count it was probably either the GTOY of Morrowind or the Gold edition of Call of Duty 2 both which I think I spent around $15 on...
I never really pay much attention to how much I spend on that stuff...
though I think if I picked one up for $2 I'd remember
