As I keep upgrading my 560SL I keep all the original parts just in case the next owner wants them. My wife just does not understand why, has told me if you go before me what am I supposed to do with them. I tell her give them to the next owner, they might say, why did he keep this, or may say wow, that is great. I also like to keep them to show why I replaced. However, I am the type that loves to drive, so probably won't be worth a lot. I have put over 20,000 miles on it since I bought it and have gone over the 100,000 mile mark and that probably cost me a couple thousand. I however believe cars are meant to be DRIVEN.