What were you demo'ing on the Marantz? My recommendation to you is take in some music that you are familiar with. Something classical with a lot of strings works well. Like mikehorvath has suggested, getting the music right means that your movies will sound right as well. Music is much more difficult to reproduce accurately. The 1050 sure does a bang up job in my home and I would recommend it highly to anyone in that market.

Also, I don't know how Marantz marks their power ratings, but I'm pretty sure that the Outlaws provide ratings for actual power perceived at full loading, not just the max capability of the unit with no load. This explains why everyone is always so amazed that a unit with such a "low" power rating always sounds SO good. If I'm mistaken there, someone please pull my head out. But assuming I'm right there, more power for the speakers means not just more volume, but more clarity as well.

Good luck with your decision, let us know what you decide to do!