Now that you have it all, do you ever wish you could go back to when you had it simple?

Let me put it this way...I have reached a point in my life where I feel that I have gotten all I ever really wanted, and I still live a fairly simple life/lifestyle. Of course I would like a little more or a little better, but only within the realm of improving on what is already here and I/we already have. In that sense I am happy and content with what is and I wouldn't change a thing.