i have always charged for basemaps cause i spent the time tuning the original car that i am basing their map from, i spent my own money on all of my tuning equipment and i spent years learning everything to be able to do it. i dont charge a lot, considering what is spent on the chip, packaging and shipping, i end up with enough money for a beer. and luckily i dont get those annoying calls or emails that their car doesnt run right. im sure their car isnt perfect, but i guess i managed to drive the point home that it was only meant for them to drive the car to a tuner.