The Sub is iconic, but it's not perfect..I have 7.25 inch wrist and think the Rolex Maxi case wears very bulky. Personally I'm drawn more to the Yatchmaster because fit is really important to me. 39mm is my sweet spot and P39 is my current daily..
If you're not wearing it, probably better to put the money into something that isn't sitting around not getting wrist time..