A couple of guys I respect in the hobby have laid out exactly what is wrong at Beckett. Specifically their grading department.
SportsCards Uncensored, as usual, is spot on with his analysis.
Joe Collector has some great images of Beckett graded cards to compare to the Strasburg 1/1 that recently received a 9.5. A must see.
Check out both of their blogs. Then go ahead and watch this video. Just watch.