Market Watch:  “A company that creates medical-marijuana dispensing machines says its stock is getting way too high.  Medbox MDBX -90.24%   shares surged 3,000% this week — from roughly $4 Monday to $215 Thursday — before falling to $100 after executives sought to dampen investor enthusiasm. . . . The stock, which fell around 50% in early trading Friday, still hovers at $100. “We believe an appropriate trading range is between $5 and $10 but, alas, the market will do what it will do,” says Medbox founder Vincent Mehdizadeh. “