Vehicle purchases are usually heart over head decision for most. So my views won't matter to you.
I like to keep my vehicles for long and whatever problems comes on the way can be dealt with less out of pocket expenses than buying a new vehicle.
If you are looking at a worthy upgrade form ST, they are 1.5 to 2 times cost compared to Ford.
But if money is not a limiting factor, you should definitely try something else for 24, than a facelift ST. I don't like the front end of 24 and I would try to get the info screen from it though.