I'll second Glen on this one.
Yeah, you have to find one used and such, and it may have some cosmetic flaws due to years of use, but hey it's a guitar mean to be played. Not some pretty thing meant only for looks. Sure, 3120s are GREAT guitars...but for the features and price difference you cant go wrong with the usrg 30. I love the feel of the neck, plus you get a little something the 3120 doesn't...NO, Im not talking about theremovable headstock, no, not the quilt top, no, not more colour choices (depending on how hard you look) but neck binding. Ew...I LOVE neck binding. It's only cosmetic, but it looks and even feels really classy. Plus I really like the tone of alder. You can find a good used rg 30 for around the 4-650 dollar range..sure beats 900 used on something that I feel has a little less to offer. Just my opinion.