Yes, and I don't like the idea of flipping cars every few years. (hence holding onto my 12 year old truck)
Quick tangent, this seems like it should be in the lost sheep thread.
That said, the used market is crazy, as everyone keeps saying. I can get what I paid for the Expedition on trade with 40k miles. I looked at getting a newer Expedition in pretty much any color but black. I couldn't justify putting another $20k into essentially the same vehicle. I told my wife that we cold make a lot of repairs for $20k. That said, the transmission shifts incredibly rough more frequently than it should. Like shake the vehicle rough. We've taken it to Ford and they "flash" it and tell us the problem should be solved. I just don't have a good feeling about the longevity of the Expedition.
If the new Sequoia starts around $50k like I've read, then it would be close enough in cost that I'd make the switch. If it comes in at $70k+ for how I would want it spec'd then we'll just ride out the Expedition.