The 10/11 and 11/12 are the exact same besides colors. The 12/13 changed to a slightly different toe strap system. I haven't tried the new ones so I can't comment on them, but I've owned 10/11 and 11/12 versions and they have worked great for me. I went through the same thought pattern and decided it was not worth the extra $85-$110.
16 Gnu Swallow Tail Carver . 16 NS West . 15 NS Snowtrooper BIA
16 Burton Genesis X . 15 Now Drive
16 Flow Talon . 14 Flow Hylite