I'd say yes. The Galaxy S 3 and the Galaxy Note 2 are pretty much the only phones that come with 2GB of RAM. (Maybe that new LG phone too.) Every other flagship phone comes with 1GB. More RAM allows more apps to remain open at the same time which can make switching back and forth between multiple apps smoother. It's nice to have, but not necessary. Even huge high-end games like Shadowgun, Dead Space, NOVA 3, etc don't require that much RAM to run.
I suspect that next year 2GB of RAM will become more common as other manufacturers try to check the box to compete with Samsung, but I don't expect it to be necessary to have that much RAM for a long time.
If you want the RAZR max HD then go for it.