SesameCrunch, how many bikes are presently in your stable and what number are you trying to whittle them down to? What for you is "too much" and what would be just right?
If you are collecting folders, then I'd say you should sell the Bridgestone as you already have another Moulton in your stable. A good collection should have some breadth within the genre.
On the other hand (to play devil's advocate), didn't your poor mother go halfway across the world to get you the Bridgestone just a few months ago? Are you really going to diss her labor of love so quickly?
On the third hand (now invoking Shiva), if you are serious about reducing the number of bicycles you have, then you probably have way too many and you need to be ruthless. Sell both (as jur suggests). Oh, and then put the proceeds in your retirement fund so you can't turn around and invest it in more bikes.