I've bought too many to count but haven't ever bought a new one. I like the mine with a few years and miles on them because they're easier to maintain and I tend to flip them for the same price or more than what I bought them for after I'm done with them.
The only car I've bought even close to new was my wife's minivan. It was a year old and only had 10k miles on it but we paid about $12k less than the new ones so it worked for me. I don't think I'll ever buy a new car... or spend anywhere near the price of a new car.