Well, that is the thing, not sure about 2010, but I remember that in 2009 he took less time off than other recent Presidents. So it is a frivolous point IMO, In fact the 2009 stats made Obama look good. The reporter that compiled the stats had a a good point, they are never really "off" anyway. I can only imagine that factor increases as technology becomes more advanced. I could look it up if you want.
My point is, there are tons of valid criticisms, IMO stick to those.