Saw these two lines at the same book:

USA SOCCER - Aug 29
6:00 PM
9401 COLORADO RAPIDS +½-105 o2½-115
9402 REAL SALT LAKE -½-135 u2½-125

9401 COLORADO RAPIDS +250
9402 REAL SALT LAKE -133
9403 Draw +225

Zero in on the RSL lines. Why would anyone take the first line (-.5 -135) when the second line is also an option (-133.) Minus .5 without the draw option and No Spread with the draw option is the same bet...