Way To Go, Kain!
A man after my heart.....
Am keeping mine too.
And yes a better word, instead of "Value" would be "Resale Price". Because, you would agree all of us here do value our cars more than the regular joe, no matter what price anyone would put on them. For us they are our babies, carefully nurtured to become what they are today, and no man is gonna put a value on my baby.
That said,what does actually reduce the resale value of cars is everything BFF mentions, including body-kits etc.
In fact any part of the car that is in a condition that that same regular joe may wanna replace/ repair, due to peer pressure, before he considers the vehicle befitting his ' high standards"
Some thing s that may be included are tyres, stained or worn upholstery/seat-covers, battery, cracked lamp covers, stiff wind-shield wipers, knick & dents, and mismatched paint touch-ups, hell even a worn door key-slot.
this same regular joe would point out all these defects, even when they do not affect the performance, and after he buys your car, he may not even fix them himself for years to come. And yet, at the time of the sale he points them out as if his life would end if he does not fix them, before he takes it for a spin the next morning.
Devious little bu***rs, these!
And yes there is a shortage of Forums like ours, as BFF pointed out, so the informed have no idea that there are others like them around too. Kind of like that Will Smith movie "I Am Legend".
So until we have made our presence felt in the open world, and made the world see things our way, our work is not done!
Thus Rise, My Bretheren! Go Boldly Into the Wild and Spread the Gospel of Torque Cars!