how mush you guys pay for NGK platinums? the dude at the auto store was like dayam son, are you sure you want these, they're 13 bucks a plug...im like holy cripe...he said well, i guess thats what the mother at the power plant pooped her out with...so, loving my car as mush as i do...i got her dem new platinums. spose last somewhere around 60K miles...