You're right. It's your dime. What WE think is irrelevant at this point, as you didn't ask for opinions before your purchase. Have a good time doing what you want to do, as I'm sure you'll find it rewarding. And an aside, the Tech and Advance use the same lousy, cheap, non-adjustable shock absorbers (I checked). Acura uses a very sohisticated-sounding name for these lousy socks (adaptive-reactive or something like that) but they surely were the result of a "lowest bidder" purchase plan, based of the lack of sophistication over rough roads. By going Tech instead of Advance you also avoid the controversial Auto Start-Stop system that I'm thinking shortens battery life somewhat (I'm on my SECOND replacement battery in 22k miles).Why so persistent?? I've already purchased the car! I knew what I was getting. I asked a simple question. Not sure why your drilling your point to death. No need.