Personally I'm not concerned that the pictures are a couple of years old, they are unpublished albeit alternative shots from a published calendar. Yes I'd prefer 60 shots for my $30 or the ability to choose the 31/41/29 shots that I wanted from thumbnails but over the years I've had more than my fair share of content for no charge.
I bought the first set, I'm not sure yet if I'll buy subsequent sets.