Well, Don. I hope you still visit here.
What are you "upgrading" to? At times, I would like to have a C-182. I use our 150 for business trips occasionally, and if the interstate is going the same way (like from Memphis to Nashville or Memphis to Little Rock), I can drive as fast as I can fly (and I don't exceed the speed limit), by the time you figure in the door-to-door time. If I could get up to 130 kts or so, it would help me justify flying. Flying costs more when I figure in getting a rental car on the other end. I don't think it will be happening for me, though, since the better half isn't able to fly with me anymore (disabled).