If I recall correctly, the first thing I bought from OcUK was a K6-2-300 and a motherboard to go with it. Might have been earlier than that - I remember that one because I mis-set a jumper and accidentally overclocked it to 550 and later spilt a pint of fizzy pop on it while it was on and the case was off. If the CPU socket bubbles when you remove the CPU, it's not a good sign
Surprisingly, it still worked after I washed and dried it.
So, a lot of money over the years. Much less recently, though, as I've stopped thinking "cool new toy, where's my credit card?" and started thinking "have I got the spare money for that and will I actually notice a difference compared to what I have now?"