It is "spam," but much in the way that O'Reilly's book deal was spam, or the way that the 23andme 100 buck deal was spam.
I'm upvoting this, as several of the apps were on my "nice to have" list, but not essential. Occasionally a really good deal should make it onto the board.
(Interesting though how everyone doesn't seem to mind. Must be the same effect Groupon thrives on.)
And who are the people upvoting this? :) Hmm. Conspiracy.